Wolfgang Sprengel

Assoc.Prof. Dipl.-Phys. Dr.rer.nat.

20062020
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Research Output 2006 2019

2019
Open Access
Kinetics
Chemical analysis
Reaction rates
Precipitates
Heat treatment

Recent progress in dilatometry for quantitative analysis of precipitation kinetics

Würschum, R., Enzinger, R. J., Hengge, E. & Sprengel, W., 2019, (Accepted/In press) In : IOP Conference Series / Materials Science and Engineering. 580, 012502.

Research output: Contribution to journalArticleResearchpeer-review

Precipitates
Dilatometers
Kinetics
Chemical analysis
Kinetic parameters
2018

Erratum to: Lifetime of Positrons in Nanostructured Nonstoichiometric Silver Sulfide Ag2–δS (JETP Letters, (2018), 107, 1, (4-9), 10.1134/S0021364018010095)

Rempel, A. A., Sadovnikov, S. I., Klinser, G. & Sprengel, W., 1 Apr 2018, In : JETP letters. 107, 8, 1 p.

Research output: Contribution to journalComment/debateResearchpeer-review

sulfides
positrons
silver
life (durability)
Austria

Kinetics of vacancy annealing upon time-linear heating applied to dilatometry

Enzinger, R., Neubauer, C., Kotzurek, J., Sprengel, W. & Würschum, R., 2018, In : Journal of Materials Science. 53, p. 2758-2765

Research output: Contribution to journalArticleResearchpeer-review

Open Access
Vacancies
Annealing
Heating
Kinetics
Grain boundaries

Lifetime of Positrons in Nanostructured Nonstoichiometric Silver Sulfide Ag2-δS

Rempel, A., Sadovnikov, S., Klinser, G. & Sprengel, W., 2018, In : JETP letters. 107, 1, p. 1-9

Research output: Contribution to journalArticleResearchpeer-review

Precipitation Processes Including Initial Clustering during Artificial Aging in a Commercial Al-Mg-Si Alloy

Resch, L., Klinser, G., Hengge, E., Enzinger, R. J., Luckabauer, M., Sprengel, W. & Würschum, R., 20 Aug 2018.

Research output: Contribution to conferenceAbstractResearch

quantitative analysis
kinetics
volume change
annealing
solute
2017

A method for improved 4D-computed tomography data acquisition

Kupper, M., Sprengel, W., Winkler, P. & Zurl, B., 2017, In : Zeitschrift für medizinische Physik. 27, 1, p. 31-38

Research output: Contribution to journalArticleResearchpeer-review

Defects and Charging Processes in Li-Ion Battery Cathodes Studied by Operando Magnetometry and Positron Anihilation

Würschum, R., Topolovec, S., Klinser, G., Sprengel, W., Kren, H., Koller, S., Krenn, H., Hugenschmidt, C., Reiner, M., Gigl, T., Berkermeier, F. & Fiedler, M., 2017, In : Materials Science Forum. 879, p. 2125-2130

Research output: Contribution to journalArticleResearchpeer-review

Improvement of the TLD dose calculation by application of an individual residual dose correction

Wilding, G., Stadtmann, H. & Sprengel, W., 4 Apr 2017, In : Radiation Measurements. 106, p. 273-277

Research output: Contribution to journalArticleResearchpeer-review

In Situ Real-Time Monitoring of Aging Processes in an Aluminum Alloy by High-Precision Dilatometry

Luckabauer, M., Hengge, E., Klinser, G., Sprengel, W., Würschum, R. & Solanki, K. N. (ed.), 2017, Magnesium Technology 2017: The Minerals, Metals & Materials Series (2017). p. 669-674 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Internal stress and defect-related free volume in submicrocrystalline Ni studied by neutron diffraction and difference dilatometry

Kotzurek, J., Hofmann, M., Simic, S., Pölt, P., Hohenwarter, A., Pippan, R., Sprengel, W. & Würschum, R., 2017, In : Philosophical magazine (London) / Letters. 97, 11, p. 450-458

Research output: Contribution to journalArticleResearchpeer-review

Open Access
dilatometry
residual stress
neutron diffraction
extensometers
cold rolling

Structural anisotropy in equal-channel angular extruded nickel revealed by dilatometric study of excess volume

Kotzurek, J., Sprengel, W., Krystian, M., Simic, S., Pölt, P., Hohenwarter, A., Pippan, R. & Würschum, R., 2017, In : International journal of materials research = Zeitschrift für Metallkunde. 108, p. 81-88

Research output: Contribution to journalArticleResearchpeer-review

2016

A high-stability non-contact dilatometer for low-amplitude temperature-modulated measurements

Luckabauer, M., Sprengel, W. & Würschum, R., 2016, In : Review of scientific instruments. 87, p. 075116

Research output: Contribution to journalArticleResearchpeer-review

Anisotropic defect recovery in HPT- and ECAP- processed ultrafine-grained Ni studied by difference dilatometry

Kotzurek, J., Hohenwarter, A., Krystian, M., Sprengel, W., Pippan, R. & Würschum, R., 2016, p. 312-313.

Research output: Contribution to conferencePosterResearch

Combined volumetric energetic and microstructural defect analysis of ECAP-processed nickel

Reglitz, G., Oberdorfer, B., Fleischmann, N., Kotzurek, J., Divinski, S., Sprengel, W., Wilde, G. & Würschum, R., 2016, In : Acta materialia. 103, p. 396-406

Research output: Contribution to journalArticleResearchpeer-review

Direct measurement of vacancy relaxation by dilatometry

Kotzurek, J., Steyskal, E-M., Oberdorfer, B., Hohenwarter, A., Pippan, R., Sprengel, W. & Würschum, R., 2016, In : Applied Physics Letters. 109, p. 021906 4 p.

Research output: Contribution to journalArticleResearchpeer-review

Excess volume and defect annealing in HPT- and ECAP-processed ultrafine-grained Ni studied by difference dilatometry

Würschum, R., Kotzurek, J., Hohenwarter, A., Krystian, M., Sprengel, W. & Pippan, R., 2016.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

High precision dilatometry as novel tool for in-situ-real-time monitoring of aging processes in Al alloys

Würschum, R., Luckabauer, M., Hengge, E., Klinser, G. & Sprengel, W., 2016.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

2015

Defects and structural anisotropy of HPT- and ECAP-deformed metals studied by difference dilatometry (Highlight lecture)

Sprengel, W., Kotzurek, J., Neubauer, C., Steyskal, E-M., Hohenwarter, A., Pippan, R., Trubel, S., Divinski, S., Wilde, G. & Würschum, R., 21 Sep 2015.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Defects and structural anisotropy of HPT- and ECAP-deformed metals studied by differential dilatometry

Würschum, R., Kotzurek, J., Neubauer, C., Steyskal, E-M., Sprengel, W., Pippan, R., Trubel, S., Divinski, S. & Wilde, G., 2015.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Defects and structural anisotropy of HPT- and ECAP-deformed Ni studied by difference dilatometry

Kotzurek, J., Hohenwarter, A., Trubel, S., Neubauer, C., Divinskiy, S., Sprengel, W., Wilde, G., Pippan, R. & Würschum, R., 15 Mar 2015.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

2014

Assessment of and clinical experience with a novel system for 3D radiation treatment plan QA intended for independent dose calculation for VMAT

Winkler, P., Uller, A., Odreitz, S., Maier, K. & Sprengel, W., 7 Sep 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Charging-induced defects in LiCo-oxide battery electrodes

Würschum, R., Sprengel, W., Reiner, M., Hugenschmidt, C., Fiedler, M. & Schmitz, G., 22 Aug 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Defect Studies in Ultrafine-Grained and Amorphous Metals with Dilatometric Techniques

Sprengel, W., 2014, International Conference on Diffusion in Materials. ., p. I-10-x

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Dilatometry as tool for measuring absolute concentrations of free volumes in SPD metals

Würschum, R., Sprengel, W., Kotzurek, J. A., Steyskal, E-M. & Oberdorfer, B., 30 Jun 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Evaluation and implementation of the Acuros XB dose calculation algorithm for clinical radiation therapy treatment planning

Buschmann, M., Odreitz, S., Sprengel, W. & Winkler, P., 7 Sep 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Free Volume in SPD-Ni: Influence of Deformation Method, Structure and Purity studied by Difference Dilatometry

Kotzurek, J. A., Trubel, S., Hohenwarter, A., Divinskiy, S., Sprengel, W., Wilde, G., Pippan, R. & Würschum, R., 30 Jun 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Grain boundary excess volume and defect annealing of copper after high-pressure torsion

Oberdorfer, B., Setman, D., Steyskal, E-M., Hohenwarter, A., Sprengel, W., Zehetbauer, M., Pippan, R. & Würschum, R., 2014, In : Acta materialia. 68, p. 189-195

Research output: Contribution to journalArticleResearchpeer-review

High-resolution laser dilatometry: Volume equilibration in a bulk metallic glass

Luckabauer, M., Kühn, U., Eckert, J. & Sprengel, W., 3 Apr 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Methodik zur verbesserten Datenerfassung bei der 4D-Computertomographie

Kupper, M., Sprengel, W., Winkler, P. & Zurl, B., 2014.

Research output: Contribution to conferencePosterResearch

Specific volume in a bulk metallic glass studied with complementary techniques of dilatometry and in-situ Doppler broadening

Sprengel, W., Luckabauer, M., Hugenschmidt, C. & Reiner, M., 14 Sep 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Specific volume study of a bulk metallic glass far below its calorimetrically determined glass transition temperature

Luckabauer, M., Kühn, U., Eckert, J. & Sprengel, W., 2014, In : Physical Review / B. 89, p. 174113-1-174113-6

Research output: Contribution to journalArticleResearchpeer-review

The Decisive Contributions by L. Boltzmann and C. Matano to the Quantitative Analysis of Diffusion Phenomena

Sprengel, W. & Koiwa, M., 2014, In : Diffusion Foundations. 1, p. 49 57 p.

Research output: Contribution to journalArticleResearchpeer-review

Von der Vermessung atomarer Freiräume zu neuen Materialien; From Measuring Open Spaces to Novel Materials

Sprengel, W. & Würschum, R., 2014, Graz: Medienfabrik Graz. (Forschungsjournal der TU Graz, 2014-1; vol. 11)

Research output: Book/ReportOther reportResearch

2013

Comprehensive defect characterization of different iron samples after severe plastic deformation

Puff, W., Zhou, X., Oberdorfer, B., Scherwitzl, B. R., Parz, P., Sprengel, W. & Würschum, R., 2013, In : Journal of Physics / Conference Series. 443, 1, p. 012033-012033

Research output: Contribution to journalArticleResearchpeer-review

Dilatometric studies of volume-type atomic defects and their kinetics in ultrafine-grained and amorphous metals

Sprengel, W. & Luckabauer, M., 24 Jun 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Open Access
File

Dilatometric studies of volume-type atomic defects and their kinetics in ultrafine-grained and amorphous metals

Sprengel, W. & Luckabauer, M., 7 Oct 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

High-resolution laser dilatometry applied to reversible relaxation phenomena in a Zr-based bulk metallic glass

Luckabauer, M., Kühn, U., Eckert, J. & Sprengel, W., 2 Jul 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Reaction diffusion and interdiffusion in some binary metallic systems

Mehrer, H. & Sprengel, W., 2013, In : Philosophical magazine (London) / Letters. 93, 16, p. 1971-1986

Research output: Contribution to journalArticleResearch

Self- and Solute Diffusion, Interdiffusion and Thermal Vacancies in the System Iron-Aluminium

Mehrer, H., Luckabauer, M. & Sprengel, W., 2013, In : Defect and diffusion forum [Elektronische Resource]. 333, p. 1-25

Research output: Contribution to journalArticleResearchpeer-review

Vacancy-type and interface-related defects in ultrafine grained materials (Invited talk)

Würschum, R., Parz, P., Puff, W. & Sprengel, W., 2013, SLOPOS13 - Book of Abstracts. ., p. 24-24

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2012

Absolute concentration of free volumes and related properties of ultrafine grained metals studied by time-dependent dilatometry

Oberdorfer, B., Steyskal, E-M., Sprengel, W., Zehetbauer, M., Pippan, R. & Würschum, R., 26 Mar 2012.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Defect investigations of an ironnickel meteorite

Parz, P., Puff, W., Sprengel, W. & Leitner, M., 2012.

Research output: Contribution to conferencePosterResearch

Defects in an iron-nickel meteorite examined with positrons

Parz, P., Puff, W., Sprengel, W. & Leitner, M., 2012.

Research output: Contribution to conferencePosterResearch

Dilatometry: a powerful tool for the study of defects in ultrafine grained metals

Sprengel, W., Oberdorfer, B., Steyskal, E-M. & Würschum, R., 2012, In : Journal of Materials Science. 47, p. 7921-7925

Research output: Contribution to journalArticleResearchpeer-review

Dilatometry – A Powerful Tool for the Study of Defects in Ultrafine Grained Metals

Sprengel, W., Oberdorfer, B., Steyskal, E-M. & Würschum, R., 12 Mar 2012.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch