Elisabeth Hengge, Eva-Maria Steyskal, Alexander Dennig, Manfred Nachtnebel, Harald Matthias Fitzek, Roland Würschum and Bernd Nidetzky
Electrochemically Induced Nanoscale Stirring Boosts Functional Immobilization of Flavocytochrome P450 BM3 on Nanoporous Gold Electrodes
Small Methods
,
2024
Show publication in PURE
Philipp Brunner and Roland Würschum
Diffusion-reaction model of positron annihilation for complex defect pattern
Journal of Physics: Condensed Matter
36,
2024
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Marcel Simhofer, Philipp Brunner, Jiehua Lie, Wolfgang Sprengel and Roland Würschum
Temperature-modulated dilatometry as tool for studying precipitation kinetics: Case example Al-Mg
Journal of Alloys and Compounds
1010,
2024
Show publication in PURE
Florian Brumbauer, Norihiko L. Okamoto, Tetsu Ichitsubo, Wolfgang Sprengel and Martin Luckabauer
Minor additions of Sn suppress the omega phase formation in beta titanium alloys
Acta Materialia
262,
2024
Show publication in PURE
Norihiko L. Okamoto, Florian Brumbauer, Martin Luckabauer, Wolfgang Sprengel, Ryota Abe and Tetsu Ichitsubo
Why is Neutral Tin Addition Necessary for Biocompatible β-Titanium Alloys? – Synergistic Effects of Suppressing ω Transformations
Acta Materialia
273,
2024
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Matthias Prasch, Roland Würschum and Stefan Topolovec
Indirect magneto-ionic effect in FeSi2/Si nanocomposite induced by electrochemical lithiation and delithiation
JPhys Materials
7,
2024
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Marcel Simhofer, Philipp Brunner, Jörg Weissmüller and Roland Würschum
Diffusion–reaction modelling of modulated hydrogen loading
Philosophical Magazine
104,
647-680,
2024
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Wolfgang Sprengel and Roland Würschum
High-Precision Dilatometry for the Study of Precipitation Processes and Microalloying Effects in Lightweight Alloys - A Specific Review
Advanced Engineering Materials
26,
2024
Show publication in PURE
Florian Brumbauer, Ulrich Brossmann, Robert Josef Enzinger, Jiehua Lie, Wolfgang Sprengel and Roland Würschum
Precipitation processes of Al-1.7 at% Cu and the influence of Au micro-alloying studied by dilatometry
Journal of Alloys and Compounds
960,
2023
Show publication in PURE
Michael Mayer, Jiri Svoboda, Francisca Mendez Martin, Simon Fellner, Christoph Gammer, Vsevolod Razumovskiy, Laura Resch, Wolfgang Sprengel, Andreas Stark, Stefan Zeisl and Gerald Ressel
From microscopic to atomistic scale: Temperature effect on yttria distribution in mechanically alloyed FeCrMnNiCo powder particles
Journal of Alloys and Compounds
968,
2023
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Lara Marie Novak and Eva-Maria Steyskal
Electrochemical detection of fluoride ions in water with nanoporous gold modified by a boronic acid terminated self-assembled monolayer
RSC Advances
13,
6947-6953,
2023
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Elisabeth Hengge, Jakob Ihrenberger, Eva-Maria Steyskal, Ricardo Henrique Buzolin, Martin Luckabauer, Christof Sommitsch and Roland Würschum
Porosity evolution and oxide formation in bulk nanoporous copper dealloyed from a copper – manganese alloy studied by in situ resistometry
Nanoscale Advances
5,
393-404,
2023
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Robert Josef Enzinger, Martin Luckabauer, Norihiko L. Okamato, Tetsu Ichitsubo, Wolfgang Sprengel and Roland Würschum
Influence of Oxygen on the Kinetics of Omega and Alpha Phase Formation in Beta Ti–V
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
54,
473-486,
2023
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Roland Würschum
Mean time of diffusion- and reaction-limited loading and unloading
Applied Physics A: Materials Science and Processing
129,
2023
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Laura Resch, Anna Karner, Wolfgang Sprengel, Roland Würschum and Robert Schennach
Water intake of cellulose materials monitored by positron annihilation lifetime spectroscopy
Cellulose
29,
1357–1363,
2022
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Roland Würschum, Robert Weitenhüller, Robert Josef Enzinger and Wolfgang Sprengel
Modulated dilatometry as a tool for simultaneous study of vacancy formation and migration
International Journal of Materials Research
113,
683-692,
2022
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Markus Gößler, Elisabeth Hengge, Marco Bogar, Mihaela Albu, Daniel Knez, Heinz Amenitsch and Roland Würschum
In Situ Study of Nanoporosity Evolution during Dealloying AgAu and CoPd by Grazing-Incidence Small-Angle X-ray Scattering
The Journal of Physical Chemistry C
126,
4037–4047,
2022
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Stefan Topolovec, Alexander Steiner, Markus Gößler, Heinz Krenn and Roland Würschum
Magnetism of Co-rich clusters embedded in nanoporous Pd prepared by electrochemical dealloying - Influence of thermal annealing
Journal of Magnetism and Magnetic Materials
563,
2022
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Philipp Brunner, Eva-Maria Steyskal, Stefan Topolovec and Roland Würschum
Positronium chemistry of a Fe2+/3+ solution under electrochemical control
The Journal of Chemical Physics
157,
2022
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O. Renk, R. Enzinger, C. Gammer, D. Scheiber, B. Oberdorfer, M. Tkadletz, A. Stark, W. Sprengel, R. Pippan, J. Eckert, L. Romaner and A. Ruban
Stainless steel reveals an anomaly in thermal expansion behavior of severely deformed materials
Physical Review Materials
5,
2021
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Philipp Emanuel Brunner, Eva-Maria Steyskal and Roland Würschum
Electrochemical switching of positronium triplet quenching
Physical Chemistry, Chemical Physics
23,
25278-25283,
2021
Show publication in PURE
Robert Josef Enzinger, Martin Luckabauer, Tetsu Ichitsubo and Roland Würschum Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-AlloyTHERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications1851-1856
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Gregor Klinser, Heinz Krenn and Roland Würschum Operando Monitoring of Charging Processes in Battery Cathodes by Magnetometry and Positron AnnihilationTHERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications1647-1652
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Markus Gößler, Stefan Topolovec, Heinz Krenn and Roland Würschum
Nanoporous Pd 1−x Co x for hydrogen-intercalation magneto-ionics
APL Materials
9,
2021
Show publication in PURE
Philipp Emanuel Brunner, Florian Brumbauer, Eva-Maria Steyskal, Oliver Renk, Annelie-Martina Weinberg, Hartmuth Schröttner and Roland Würschum
Influence of high-pressure torsion deformation on the corrosion behaviour of a bioresorbable Mg-based alloy studied by positron annihilation
Biomaterials Science
9,
4099-4109,
2021
Show publication in PURE
Elisabeth Hengge, Markus Hirber, Philipp Emanuel Brunner, Eva-Maria Steyskal, Bernd Nidetzky and Roland Würschum
Nanoporous gold electrodes modified with self-assembled monolayers for electrochemical control of the surface charge
Physical Chemistry, Chemical Physics
23,
14457-14464,
2021
Show publication in PURE
Roland Würschum and Gregor Klinser
Diffusion-drift-reaction model for positron trapping and annihilation at interfaces with space charge in bulk materials
The Philosophical Magazine
100,
379-397,
2020
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Laura Resch, Thomas Gigl, Gregor Klinser, Christoph Hugenschmidt, Wolfgang Sprengel and Roland Würschum
In situ monitoring of artificial aging and solution heat treatment of a commercial Al–Mg–Si alloy with a high intensity positron beam
Journal of Physics: Condensed Matter
32,
2020
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Laura Resch, Martin Luckabauer, Nick Helthuis, Norihiko Okamoto, Tetsu Ichitsubo, Robert Josef Enzinger, Wolfgang Sprengel and Roland Würschum
Search for vacancies in concentrated solid-solution alloys with fcc crystal structure
Physical Review Materials
4,
2020
Show publication in PURE
Markus Gößler, Manfred Nachtnebel, Hartmuth Schröttner, Heinz Krenn, Eva-Maria Steyskal and Roland Würschum
Evolution of superparamagnetism in the electrochemical dealloying process
Journal of Applied Physics
128,
2020
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Norihiko Okamoto, Shuhei Kasatani, Martin Luckabauer, Robert Josef Enzinger, Satoshi Tsutsui, Masakazu Tane and Tetsu Ichitsubo
Evolution of microstructure and variations in mechanical properties accompanied with diffusionless isothermal ω transformation in β-titanium alloys
Physical Review Materials
4,
2020
Show publication in PURE
B. Gadermaier, L. Resch, D. M. Pickup, I. Hanghofer, I. Hanzu, P. Heitjans, W. Sprengel, R. Würschum, A. V. Chadwick and H. M.R. Wilkening
Influence of defects on ionic transport in LiTaO3 – A study using EXAFS and positron annihilation lifetime spectroscopy
Solid State Ionics
352,
2020
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D. Sorger, H. Stadtmann and W. Sprengel
Fading study and readout optimization for routinely use of LiF:Mg,Ti thermoluminescent detectors for personal dosimetry
Radiation Measurements
135,
2020
Show publication in PURE
Robert Josef Enzinger, Elisabeth Hengge, Wolfgang Sprengel and Roland Würschum
High-precision isothermal dilatometry as tool for quantitative analysis of precipitation kinetics: case study of dilute Al alloy
Journal of Materials Science
54,
5083-5091,
2019
Show publication in PURE
Gregor Klinser, Harald Krenn, Stefan Koller and Roland Würschum
Operando monitoring of charging-induced defect formation in battery electrodes by positrons
Applied Physics Letters
114,
013905,
2019
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Kashif Nadeem, M. Kamran, Heinz Krenn, D.V. Szabo, Ulrich Brossmann and Roland Würschum
Disordered and Frustrated Magnetization in Coated MnFe2O4 Nanoparticles Prepared by Microwave Plasma Synthesis
Solid State Phenomena
289,
127-133,
2019
Show publication in PURE
Gregor Klinser, Roman Zettl, H. Martin R. Wilkening, Heinz Krenn, Ilie Hanzu and Roland Würschum
Redox processes in sodium vanadium phosphate cathodes – insights from operando magnetometry
Physical Chemistry, Chemical Physics
,
2019
Show publication in PURE
Markus Gößler, Mihaela Albu, Gregor Klinser, Eva-Maria Steyskal, Heinz Krenn and Roland Würschum
Magneto-Ionic Switching of Superparamagnetism
Small
,
2019
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Roland Würschum, Laura Resch and Gregor Klinser Positron trapping and annihilation atinterfaces between matrix and cylindrical or spherical precipitates modeled by diffusion-reaction theoryThe 18th International Conference on Positron Annihilation (ICPA-18)050010-1 - 050010-6
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Laura Resch, Gregor Klinser, Wolfgang Sprengel and Roland Würschum Identification of different positron trapping sites during artificial aging of a commercial light weight alloyThe 18th International Conference on Positron Annihilation (ICPA-18)050012-1 - 050012-4
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Roland Würschum, Robert Josef Enzinger, Elisabeth Hengge and Wolfgang Sprengel Recent progress in dilatometry for quantitative analysis of precipitation kinetics40th Risø International Symposium on Material Science
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Elisabeth Hengge, Eva-Maria Steyskal, Rupert Bachler, Alexander Dennig, Bernd Nidetzky and Roland Würschum
Adsorption and desorption of self-assembled L-cysteine monolayers on nanoporous gold monitored by in situ resistometry
Beilstein Journal of Nanotechnology
10,
2275-2279,
2019
Show publication in PURE
A. A. Rempel, A.A. Valeeva, A.S. Kurlov, Gregor Klinser and Wolfgang Sprengel
Size effect in nonstoichiometric titanium monoxide and vanadium carbide nanocrystals measured by positron lifetime spectroscopy
Mendeleev Communications
29,
486-488,
2019
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F. Zeb, M. Ishaque, K. Nadeem, M. Kamran, H. Krenn, D. V. Szabo, U. Brossmann and I. Letofsky-Papst
Reduced surface effects in weakly interacting ZrO2 coated MnFe2O4 nanoparticles
Journal of Magnetism and Magnetic Materials
469,
580-586,
2019
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R. Enzinger, C. Neubauer, J. Kotzurek, W. Sprengel and R. Würschum
Kinetics of vacancy annealing upon time-linear heating applied to dilatometry
Journal of Materials Science
53,
2758-2765,
2018
Show publication in PURE
Gregor Klinser, Stefan Topolovec, Heinz Krenn and Roland Würschum Process Monitoring of Charging/Discharging of Lithium Ion Battery Cathodes by Operando SQUID MagnetometryEncyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry849-855
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Laura Resch, Gregor Klinser, Elisabeth Hengge, Robert Josef Enzinger, Martin Luckabauer, Wolfgang Sprengel and Roland Würschum
Precipitation processes in Al–Mg–Si extending down to initial clustering revealed by the complementary techniques of positron lifetime spectroscopy and dilatometry
Journal of Materials Science
53,
14657,
2018
Show publication in PURE
Roland Würschum, Laura Resch and Gregor Klinser
Diffusion-reaction model for positron trapping and annihilation at spherical extended defects and in precipitate-matrix composites
Physical Review B
97,
224108-1 - 11,
2018
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Gregor Klinser, Martin Stückler, Harald Krenn, Stefan Koller, Walter Goessler, Heinz Krenn and Roland Würschum
Charging processes in the cathode LiNi0.6Mn0.2Co0.2O2 as revealed by operando magnetometry
Journal of Power Sources
396,
791-795,
2018
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Andrey Rempel , Stanislav Sadovnikov, Gregor Klinser and Wolfgang Sprengel
Lifetime of Positrons in Nanostructured Nonstoichiometric Silver Sulfide Ag2-δS
JETP Letters
107,
4–9,
2018
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Elisabeth Hengge, Robert Josef Enzinger, Martin Luckabauer, Wolfgang Sprengel and Roland Würschum
Quantitative volumetric identification of precipitates in dilute alloys using high-precision isothermal dilatometry
Philosophical Magazine / Letters
98,
301,
2018
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Eva-Maria Steyskal, Michael Seidl, Sanja Simic and Roland Würschum
Enhanced Charging-Induced Resistance Variations of Nanoporous Gold by Dealloying in Neutral Silver Nitrate Solution
Langmuir
34,
13110-13115,
2018
Show publication in PURE
Markus Gößler, Eva-Maria Steyskal, Markus Stütz, Norbert Enzinger and Roland Würschum
Hydrogen-induced plasticity in nanoporous palladium
Beilstein Journal of Nanotechnology
9,
3013,
2018
Show publication in PURE
Martin Kupper, Wolfgang Sprengel, Peter Winkler and Brigitte Zurl
A method for improved 4D-computed tomography data acquisition
Zeitschrift für medizinische Physik
27,
31-38,
2017
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Roland Würschum, Stefan Topolovec, Gregor Klinser, Wolfgang Sprengel, Harald Kren, Stefan Koller, H Krenn, Christoph Hugenschmidt, M. Reiner, Thomas Gigl, Frank Berkermeier and Martin Fiedler
Defects and Charging Processes in Li-Ion Battery Cathodes Studied by Operando Magnetometry and Positron Anihilation
Materials Science Forum
879,
2125-2130,
2017
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Eva-Maria Steyskal, Michael Seidl, Matthias Graf and Roland Würschum
Dealloying progress during nanoporous structure evolution analyzed by in situ resistometry
Physical Chemistry, Chemical Physics
19,
29880-29885,
2017
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Jaromir Kotzurek, M. Hofmann, S. Simic, Peter Pölt, A. Hohenwarter, R. Pippan, Wolfgang Sprengel and Roland Würschum
Internal stress and defect-related free volume in submicrocrystalline Ni studied by neutron diffraction and difference dilatometry
Philosophical Magazine / Letters
97,
450-458,
2017
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Georg Wilding, Hannes Stadtmann and Wolfgang Sprengel
Improvement of the TLD dose calculation by application of an individual residual dose correction
Radiation Measurements
106,
273-277,
2017
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Jaromir Kotzurek, Wolfgang Sprengel, Maciej Krystian, Sanja Simic, Peter Pölt, Anton Hohenwarter, Reinhard Pippan and Roland Würschum
Structural anisotropy in equal-channel angular extruded nickel revealed by dilatometric study of excess volume
International Journal of Materials Research
108,
81-88,
2017
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Martin Luckabauer, Elisabeth Hengge, Gregor Klinser, Wolfgang Sprengel and Roland Würschum In Situ Real-Time Monitoring of Aging Processes in an Aluminum Alloy by High-Precision DilatometryMagnesium Technology 2017669-674
Show publication in PURE
Stefan Topolovec, Harald Kren, Gregor Klinser, Stefan Koller, Heinz Krenn and Roland Würschum
Operando magnetometry on LixCoO2 during charging/discharging
Journal of Solid State Electrochemistry
20,
1491-1496,
2016
Show publication in PURE
Stefan Topolovec, Heinz Krenn and Roland Würschum
Enhanced magnetic moment of ultrathin Co films measured by in situ electrodeposition in a SQUID
Journal of Magnetism and Magnetic Materials
397,
96-100,
2016
Show publication in PURE
Gregor Klinser, Stefan Topolovec, Harald Kren, Stefan Koller, Heinz Krenn and Roland Würschum
Charging of lithium cobalt oxide battery cathodes studied by means of magnetometry
Solid State Ionics
293,
64-71,
2016
Show publication in PURE
Eva-Maria Steyskal, Zhen Qi, Peter Pölt, Mihaela Albu, Jörg Weissmüller and Roland Würschum
Electrochemically Tunable Resistance of Nanoporous Platinum Produced by Dealloying
Langmuir
32,
7757−7764,
2016
Show publication in PURE
Jaromir Kotzurek, Eva-Maria Steyskal, Bernd Oberdorfer, Anton Hohenwarter, Reinhard Pippan, Wolfgang Sprengel and Roland Würschum
Direct measurement of vacancy relaxation by dilatometry
Applied Physics Letters
109,
021906,
2016
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Martin Luckabauer, Wolfgang Sprengel and Roland Würschum
A high-stability non-contact dilatometer for low-amplitude temperature-modulated measurements
Review of Scientific Instruments
87,
075116,
2016
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Gerrit Reglitz, Bernd Oberdorfer, Nina Fleischmann, Jaromir Kotzurek, Sergiy Divinski, Wolfgang Sprengel, Gerhard Wilde and Roland Würschum
Combined volumetric energetic and microstructural defect analysis of ECAP-processed nickel
Acta Materialia
103,
396-406,
2016
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Eva-Maria Steyskal, Christopher Alois Wiednig, Norbert Enzinger and Roland Würschum
In situ characterization of hydrogen absorption in nanoporous palladium produced by dealloying
Beilstein Journal of Nanotechnology
7,
1197-1201,
2016
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Gregor Klinser, Stefan Topolovec, Harald Kren, Stefan Koller, Walter Gössler, Roland Würschum and Heinz Krenn
Continuous monitoring of the bulk oxidation states in LixNi1/3Mn1/3Co1/3O2 during charging and discharging
Applied Physics Letters
109,
213901,
2016
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Ulrich Brossmann, Mihaela Albu, Ferdinand Hofer and Roland Würschum
Single grain analysis on a nanoscale in ZrO2:Al2O3 nano-composites by means of high-resolution scanning transmission electron microscopy
Materials Research Express
3,
2016
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Alexander Schmon, Kirmanj Aziz, Martin Luckabauer and Gernot Pottlacher
Thermophysical Properties of Manganin (Cu86Mn12Ni2) in the Solid and Liquid State
International Journal of Thermophysics
36,
1618-1626,
2015
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Stefan Topolovec, Heinz Krenn and Roland Würschum
Electrochemical cell for in situ electrodeposition of magnetic thin films in a superconducting quantum interference device magnetometer
Review of Scientific Instruments
86,
063903-063903,
2015
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Martin Luckabauer, Uta Kühn, Jürgen Eckert and Wolfgang Sprengel
Specific volume study of a bulk metallic glass far below its calorimetrically determined glass transition temperature
Physical Review B
89,
174113-1-174113-6,
2014
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G. Ressel, Peter Parz, S. Primig, H. Clemens, Werner Puff and Harald Leitner
New findings on the atomistic mechanisms active during mechanical milling of a Fe-Y_2O_3 model alloy
Journal of Applied Physics
115,
2014
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Bernd Oberdorfer, Daria Setman, Eva-Maria Steyskal, Anton Hohenwarter, Wolfgang Sprengel, Michael Zehetbauer, Reinhard Pippan and Roland Würschum
Grain boundary excess volume and defect annealing of copper after high-pressure torsion
Acta Materialia
68,
189-195,
2014
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Wolfgang Sprengel and Masahiro Koiwa
The Decisive Contributions by L. Boltzmann and C. Matano to the Quantitative Analysis of Diffusion Phenomena
Diffusion Foundations
1,
49-57,
2014
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Wolfgang Sprengel Defect Studies in Ultrafine-Grained and Amorphous Metals with Dilatometric TechniquesInternational Conference on Diffusion in MaterialsI-10-x
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Grazyna Kontrym-Sznajd and Heinrich Sormann
The Influence of a positron on electron-positron momentum densities in metallic materials
Physica Scripta
89,
1-7,
2014
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Christoph Heil, Heinrich Sormann, Lilia Boeri, Markus Aichhorn and Wolfgang von der Linden
Accurate bare susceptibilities from full-potential ab initio calculations
Physical Review B
90,
115143,
2014
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Christoph Heil, Lilia Boeri, Heinrich Sormann, Wolfgang von der Linden and Markus Aichhorn
Effect of the iron valence in the two types of layers in LiFeO2Fe2Se2
Physical Review B
90,
2014
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Gerald Ressel, Peter Parz, Alexander Fian, David Holec, Sophie Primig, Werner Puff, Harald Leitner and Helmut Clemens
On the bahavior of yttria/yttrium during mechanical alloying of a Fe-Y_2O_3 model alloy system
Advanced Materials Research
,
598-603,
2014
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Helmut Mehrer and Wolfgang Sprengel
Reaction diffusion and interdiffusion in some binary metallic systems
Philosophical Magazine / Letters
93,
1971-1986,
2013
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B. Zurl, R. Tiefling, P. Winkler, Peter Kindl and K.S. Kapp
Hounsfield units variations
Strahlentherapie und Onkologie
190,
88-93,
2013
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Stefan Topolovec, Peter Jerabek, Dorothée Vinga Szabó, Heinz Krenn and Roland Würschum
SQUID magnetometry combined with in situ cyclic voltammetry: A case study of tunable magnetism of γ-Fe₂O₃ nanoparticles
Journal of Magnetism and Magnetic Materials
329,
43-48,
2013
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Helmut Mehrer, Martin Luckabauer and Wolfgang Sprengel
Self- and Solute Diffusion, Interdiffusion and Thermal Vacancies in the System Iron-Aluminium
Defect and Diffusion Forum
333,
1-25,
2013
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Marek Brancewicz, Maciej Pylak, Andrzej Andrejczuk, Eugeniusz Zukowski, Ludwik Dobrzynski, Yoshiharu Sakurai, Masayoshi Itou and Heinrich Sormann
Compton Profile Study and Electron Momentum Density Reconstruction in Hexagonal Mg
Journal of the Physical Society of Japan
82,
1-12,
2013
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Peter Parz, Bernd Fuchsbichler, Stefan Koller, Brigitte Bitschnau, Franz-Andreas Mautner, Werner Puff and Roland Würschum
Charging-induced defect formation in LixCoO2 battery cathodes studied by positron annihilation spectroscopy
Applied Physics Letters
102,
151901-1-151901-4,
2013
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Maciej Pylak, Ludwik Dobrzynski and Heinrich Sormann
Spin polarization of conduction electrons and electronic structure of gadolinium
Physica Scripta
88,
1-11,
2013
Show publication in PURE
Werner Puff, Xiang Zhou, Bernd Oberdorfer, Boris Renato Scherwitzl, Peter Parz, Wolfgang Sprengel and Roland Würschum
Comprehensive defect characterization of different iron samples after severe plastic deformation
Journal of Physics: Conference Series
443,
012033-012033,
2013
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Eva-Maria Steyskal, Stefan Topolovec, Stephan Landgraf, Heinz Krenn and Roland Würschum
In situ monitoring magnetism and resistance of nanophase platinum upon electrochemical oxidation
Beilstein Journal of Nanotechnology
4,
394-399,
2013
Show publication in PURE
David J. Keeble, Ulrich Brossmann, Werner Puff and Roland Würschum POSITRON ANNIHILATION STUDIES OF MATERIALSCharacterization of Materials
Show publication in PURE
Peter Parz, M.J. Faller, R. Pippan, Werner Puff and Roland Würschum
Defects in Al-3wt%Cu after high-pressure torsion studied by two-dimensional Doppler broadening spectroscopy
Physics Procedia
35,
10-15,
2012
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Eva-Maria Steyskal, Maximilian Besenhard, Stephan Landgraf, Yi Zhong, Jörg Weissmüller, Peter Pölt, Mihaela Albu and Roland Würschum
Sign-inversion of charging-induced variation of electrical resistance of nanoporous platinum
Journal of Applied Physics
,
073703-1-073703-7,
2012
Show publication in PURE
Kiminori Sato and Wolfgang Sprengel
Element-specific study of local segmental dynamics of polyethylene terephthalate upon physical aging
The Journal of Chemical Physics
137,
104906/1-104906/7,
2012
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Kashif Nadeem, Heinz Krenn, Thomas Traußnig, Roland Würschum, D.V. Szabo and Ilse Letofsky-Papst
Spin-glass freezing of maghemite nanoparticles prepared by microwave plasma synthesis
Journal of Applied Physics
111,
113911-113917,
2012
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J.X. Fang, U. Vainio, Werner Puff, Roland Würschum, X.L. Wang, D. Wang, M. Ghafari, F. Jiang, J. Sun, H. Hahn and H. Gleiter
Atomic Structure and Stuctural Stability of Sc_75Fe_25 Nanoglasses
Nano Letters
12,
458-463,
2012
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Roland Würschum, Bernd Oberdorfer, Eva-Maria Steyskal, Wolfgang Sprengel, Werner Puff, Philip Pikart, Christoph Hugenschmidt and Reinhard Pippan
Free volumes in bulk nanocrystalline metals studied by the complementary techniques of positron annihilation and dilatometry
Physica B: Condensed Matter
407,
2670-2675,
2012
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Peter Parz, Michael, Josef Faller, Reinhard Pippan, Herbert Reingruber, Werner Puff and Roland Würschum
Microstructure and vacancy-type defects of high-pressure torsion deformed Al-3wt%Cu alloy
Journal of Applied Physics
112,
103506-1-103506-7,
2012
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Wolfgang Sprengel, Bernd Oberdorfer, Eva-Maria Steyskal and Roland Würschum
Dilatometry: a powerful tool for the study of defects in ultrafine grained metals
Journal of Materials Science
47,
7921-7925,
2012
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Eva-Maria Steyskal, Bernd Oberdorfer, Wolfgang Sprengel, Michael Zehetbauer, Reinhard Pippan and Roland Würschum
Direct experimental determination of grain boundary excess volume in metals
Physical Review Letters
108,
055504/1-055504/5,
2012
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Thomas Traußnig, Stefan Topolovec, Kashif Nadeem, D.V. Szabo, Heinz Krenn and Roland Würschum
Magnetization of Fe-oxide based nanocomposite tuned by surface charging
Physica Status Solidi - Rapid Research Letters
5,
150-152,
2011
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Martin Sagmeister, Markus Postl, Ulrich Brossmann, Emil List, Andreas Klug, Ilse Letofsky-Papst, Dorotheé Szabó and Roland Würschum
Structure and electrical properties of nanoparticulate tungsten oxide prepared by microwave plasma synthesis
Journal of Physics: Condensed Matter
23,
334206-1-334206-7,
2011
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Andreas Jörg Schriefl, Sokratis Sgouridis, Werner Schustereder and Werner Puff
Defect investigations via positron annihilation spectroscopy on proton implanted silicon
Solid State Phenomena
178-179,
319-324,
2011
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Kashif Nadeem, Heinz Krenn, Thomas Traußnig, Roland Würschum, D.V. Szabo and Ilse Letofsky-Papst
Effect of dipolar and exchange interactions on magnetic blocking of maghemite nanoparticles
Journal of Magnetism and Magnetic Materials
323,
1998-2004,
2011
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Andreas Kautsch, Ulrich Brossmann, Heinz Krenn, Ferdinand Hofer, D.V. Szabo and Roland Würschum
Structural and optical properties of nanoparticulate Y2O3:Eu2O3 made by microwave plasma synthesis
Applied Physics A: Materials Science and Processing
105,
709-712,
2011
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Kashif Nadeem, Heinz Krenn, Thomas Traußnig and Ilse Letofsky-Papst
Distinguishing magnetic blocking and surface spin-glass freezing in nickel ferrite nanoparticles
Journal of Applied Physics
,
013912-1-013912-6,
2011
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Bernd Oberdorfer, Eva-Maria Steyskal, Wolfgang Sprengel, Reinhard Pippan, Michael Zehetbauer, Werner Puff and Roland Würschum
Recrystallization kinetics of ultrafine-grained Ni studied by dilatometry
Journal of Alloys and Compounds
509,
5309-5311,
2011
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Michael Zehetbauer, R. Grössinger, Heinz Krenn, M. Krystian, R. Pippan, P. Rogl, T. Waitz and Roland Würschum
Bulk nanostructured materials by severe plastic deformation
Advanced Engineering Materials
12,
692-700,
2010
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Wolfgang Lechner, Werner Puff, G. Wilde and Roland Würschum
Vacancy-type defects in amorphous and nanocrystalline Al alloys: Variation with preparation route and processing
Scripta Materialia
62,
439-442,
2010
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Patrick Wahl, Thomas Traußnig, Stephan Landgraf, Hai-Jun Jin, Jörg Weissmüller and Roland Würschum
Adsorption-driven tuning of the electrical resistance of nanoporous gold
Journal of Applied Physics
8,
073706-1-073706-6,
2010
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Bernd Oberdorfer, Bernd Lorenzoni, K. Unger, Wolfgang Sprengel, M. Zehetbauer, R. Pippan and Roland Würschum
Absolute concentration of free volume-type defects in ultrafine-grained Fe prepared by high-pressure torsion
Scripta Materialia
63,
452-455,
2010
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Elke Pichl and Herbert Rabitsch Langzeitverhalten von Cs-137 und K-40 in ausgewählten Lebensmitteln von unterschiedlich stark kontaminierten StandortenKünstliche und natürliche Radionuklide in unserer Umwelt80-85
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Thomas Traußnig, Stefan Topolovec, Dorothèe Vinga Szabo, Stephan Landgraf, Kashif Nadeem, Heinz Krenn and Roland Würschum Charge-induced tuning of the magnetic moment of nanocrystalline maghemite/platinum compositesX International Conference on Nanostructured Materials - Abstract Book118-118
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Bernd Oberdorfer, Eva - Maria Steyskal, Wolfgang Sprengel, Werner Puff, P. Pikart, C. Hugenschmidt, M. Zehetbauer, R. Pippan and Roland Würschum
In-situ probing of fast defect annealing in Cu and Ni with a high-intensity positron beam
Physical Review Letters
105,
146101-1-146101-4,
2010
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K Nadeem, Thomas Traußnig, Ilse Letofsky-Papst, H. Krenn, Ulrich Brossmann and Roland Würschum
Sol-gel synthesis and characterization of single-phase Ni ferrite nanoparticles dispersed in SiCO2 matrix
Journal of Alloys and Compounds
493,
385-390,
2010
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Martin Sagmeister, Ulrich Brossmann, Emil List, Rolf Ochs, Dorothee Vinga Szabó, Robert Saf, Werner Grogger, Elena Tchernychova and Roland Würschum
Synthesis and optical properties of organic semiconductor: zirconia nanocomposites
Journal of Nanoparticle Research
,
2541-2551,
2010
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T Schroettner and Peter Kindl
Long term comparison of methods to sustain energy calibration in low level gamma-ray spectroscopy and investigation of possible sources for drift
Applied Radiation and Isotopes
68,
164-168,
2010
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