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Number of items: 55.

Deluca, Marco ; Picht, Gunnar ; Hoffmann, Michael J. ; Rechtenbach, Annett ; Töpfer, Jörg ; Schader, Florian H. ; Webber, Kyle G. (2015):
Chemical and structural effects on the high-temperature mechanical behavior of (1−x)(Na1/2Bi1/2)TiO3-xBaTiO3 ceramics.
In: Journal of Applied Physics, 117, AIP Publishing LLC, ISSN 00218979,
[Article]

Genenko, Yuri A. ; Glaum, Julia ; Hoffmann, Michael J. ; Albe, Karsten (2015):
Mechanisms of aging and fatigue in ferroelectrics.
In: Materials Science and Engineering: B, 192, pp. 52-82. Elsevier Science Publishing, ISSN 09215107,
[Article]

Schmitt, Ljubomira Ana ; Kungl, Hans ; Hinterstein, Manuel ; Riekehr, Lars ; Kleebe, Hans-Joachim ; Hoffmann, Michael J. ; Eichel, Rüdiger-A. ; Fuess, Hartmut ; Johnson, D. (2015):
The Impact of Heat Treatment on the Domain Configuration and Strain Behavior in Pb[Zr,Ti]O3Ferroelectrics.
In: Journal of the American Ceramic Society, 98 (1), pp. 269-277. Wiley-Blackwell, ISSN 0002-7820,
DOI: 10.1111/jace.13253,
[Article]

Schmitt, Ljubomira Ana ; Schrade, David ; Kungl, Hans ; Xu, Bai-Xiang ; Mueller, Ralf ; Hoffmann, Michael J. ; Kleebe, Hans-Joachim ; Fuess, Hartmut (2014):
Bimodal domain configuration and wedge formation in tetragonal Pb[Zr1−xTix]O3 ferroelectrics.
In: Computational Materials Science, 81, pp. 123-132. Elsevier Science Publishing, ISSN 0927-0256,
DOI: 10.1016/j.commatsci.2013.07.020,
[Article]

Picht, Gunnar ; Webber, Kyle G. ; Zhang, Yining ; Kungl, Hans ; Damjanovic, Dragan ; Hoffmann, Michael J. (2012):
Critical mechanical and electrical transition behavior of BaTiO3: The observation of mechanical double loop behavior.
In: Journal of Applied Physics, 112 (12), pp. 124101(1-9). ISSN 00218979,
[Article]

Genenko, Yuri A. ; Zhukov, Sergey ; Yampolskii, Sergey V. ; Schütrumpf, Jörg ; Dittmer, Robert ; Jo, Wook ; Kungl, Hans ; Hoffmann, Michael J. ; Seggern, Heinz von (2012):
Universal Polarization Switching Behavior of Disordered Ferroelectrics.
In: Advanced Functional Materials, 22 (11), pp. 2058-2066. ISSN 1616301X,
[Article]

Langer, Jochen ; Hoffmann, Michael J. ; Guillon, Olivier (2011):
Electric Field-Assisted Sintering and Hot Pressing of Semiconductive Zinc Oxide: A Comparative Study.
In: Journal of the American Ceramic Society, 94 (8), pp. 2344-2353. ISSN 00027820,
[Article]

Sedláček, Jaroslav ; Galusek, Dušan ; Riedel, Ralf ; Hoffmann, Michael J. (2011):
Sinter-HIP of polymer-derived Al2O3–SiC composites with high SiC contents.
In: Materials Letters, 65 (15-16), pp. 2462-2465. Elsevier, ISSN 0167577X,
[Article]

Hinterstein, Manuel ; Hoelzel, Markus ; Kungl, Hans ; Hoffmann, Michael J. ; Ehrenberg, Helmut ; Fuess, Hartmut (2011):
In situ neutron diffraction study of electric field induced structural transitions in lanthanum doped lead zirconate titanate.
In: Zeitschrift für Kristallographie, 226 (2), pp. 155-162. ISSN 0044-2968,
[Article]

Langer, Jochen ; Hoffmann, Michael J. ; Guillon, Olivier (2011):
Electric Field-Assisted Sintering in Comparison with the Hot Pressing of Yttria-Stabilized Zirconia.
In: Journal of the American Ceramic Society, 94 (1), pp. 24-31. ISSN 00027820,
[Article]

Hinterstein, Manuel ; Schönau, Kristin A. ; Kling, Jens ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2010):
Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate.
In: Journal of Applied Physics, 108 (2), pp. 024110-1. ISSN 00218979,
[Article]

Kungl, Hans ; Hoffmann, Michael J. (2010):
Effects of sintering temperature on microstructure and high field strain of niobium-strontium doped morphotropic lead zirconate titanate.
In: Journal of Applied Physics, 107 (5), pp. 054111-1. ISSN 00218979,
[Article]

Genenko, Yuri A. ; Glaum, Julia ; Hirsch, O. ; Kungl, Hans ; Hoffmann, Michael J. ; Granzow, Torsten (2009):
Aging of poled ferroelectric ceramics due to relaxation of random depolarization fields by space-charge accumulation near grain boundaries.
In: Physical Review B, 80 (224109), pp. 1-9. ISSN 1098-0121,
[Article]

Tol, J. van ; Dinse, Klaus-Peter ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Pulsed High-Frequency EPR Investigation of Gadolinium-Doped PbZrO3 and PbTiO3.
In: Applied Magnetic Resonance, 36 (2-4), pp. 297-307. ISSN 0937-9347,
[Article]

Langer, Jochen ; Hoffmann, Michael J. ; Guillon, Olivier (2009):
Direct comparison between hot pressing and electric field-assisted sintering of submicron alumina.
In: Acta Materialia, 57 (18), pp. 5454-5465. ISSN 13596454,
[Article]

Eichel, Rüdiger-A. ; Erünal, Ebru ; Drahus, Michael D. ; Smyth, Donald M. ; van Tol, Johan ; Acker, Jérôme ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Local variations in defect polarization and covalent bonding in ferroelectric Cu2+-doped PZT and KNN functional ceramics at the morphotropic phase boundary.
In: Physical Chemistry Chemical Physics, 11 (39), pp. 8698-8705. ISSN 1463-9076,
[Article]

Silvestroni, Laura ; Kleebe, Hans-Joachim ; Kungl, Hans ; Lauterbach, Stefan ; Müller, Mathis M. ; Hoffmann, Michael J. (2009):
Lead Zirconate Titanate-Magnetoplumbite Composites: A First Step Toward Multiferroic Ceramics?
In: Journal of the American Ceramic Society, 92 (10), pp. 2362-2367. Wiley, ISSN 0002-7820,
DOI: 10.1111/j.1551-2916.2009.03192.x,
[Article]

Eichel, Rüdiger-A. ; Drahus, Michael D. ; Jakes, Peter ; Erünal, Ebru ; Erdem, Emre ; Parashar, Sandeep Kumar ; Kungl, Hans ; Hoffmann, Michael J. (2009):
Defect structure and formation of defect complexes in Cu2+-modified metal oxides derived from a spin-Hamiltonian parameter analysis.
In: Molecular Physics, 107 (19), p. 1981. ISSN 0026-8976,
[Article]

Rödel, Jürgen ; Kounga Njiwa, Alain Brice ; Weissenberger-Eibl, Marion ; Koch, Daniel ; Bierwisch, Antje ; Rossner, Wolfgang ; Hoffmann, Michael J. ; Danzer, Robert ; Schneider, Gerhard (2009):
Development of a roadmap for advanced ceramics: 2010–2025.
In: Journal of the European Ceramic Society, 29 (9), pp. 1549-1560. ISSN 09552219,
[Article]

Kleebe, Hans-Joachim ; Lauterbach, Stefan ; Silvestroni, Laura ; Kungl, Hans ; Hoffmann, Michael J. ; Erdem, Emre ; Eichel, Rüdiger-A. (2009):
Formation of magnetic grains in ferroelectric Pb[Zr0.6Ti0.4]O3 ceramics doped with Fe3+ above the solubility limit.
In: Applied Physics Letters, 94 (14), p. 142901. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.3103313,
[Article]

Westram, Ilona ; Kungl, Hans ; Hoffmann, Michael J. ; Rödel, Jürgen (2009):
Influence of crystal structure on crack propagation under cyclic electric loading in lead–zirconate–titanate.
In: Journal of the European Ceramic Society, 29 (3), pp. 425-430. ISSN 09552219,
[Article]

Hall, D. A. ; Mori, T. ; Withers, P. J. ; Kungl, Hans ; Hoffmann, Michael J. ; Wright, J. (2008):
Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading.
In: Materials Science and Technology, 24 (8), pp. 927-933. ISSN 02670836,
[Article]

Farooq, M. U. ; Villaurrutia, R. ; MacLaren, I. ; Burnett, T. L. ; Comyn, Timothy P. ; Bell, Andrew J. ; Kungl, Hans ; Hoffmann, Michael J. (2008):
Electron backscatter diffraction mapping of herringbone domain structures in tetragonal piezoelectrics.
In: Journal of Applied Physics, 104 (2), pp. 024111-1-024111-3. ISSN 00218979,
[Article]

Erdem, Emre ; Drahus, Michael D. ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; van Tol, Johan ; Brunel, Louis Claude (2008):
DEFECT STRUCTURE IN "SOFT" (Gd,Fe)-CODOPED PZT 52.5/47.5 PIEZOELECTRIC CERAMIC.
In: Functional Materials Letters, 1 (1), p. 7. ISSN 1793-6047,
[Article]

Kungl, Hans ; Hoffmann, Michael J. (2008):
Method for the estimation of the total displacement of ferroelectric actuators under mixed thermal and electrical loading.
In: Sensors and Actuators A: Physical, 144 (2), pp. 328-336. ISSN 09244247,
[Article]

Farooq, M. U. ; Villaurrutia, R. ; MacLaren, I. ; Kungl, Hans ; Hoffmann, Michael J. ; Fundenberger, J.-J. ; Bouzy, E. (2008):
Using EBSD and TEM-Kikuchi patterns to study local crystallography at the domain boundaries of lead zirconate titanate.
In: Journal of Microscopy, 230 (3), pp. 445-454. ISSN 0022-2720,
[Article]

Erdem, Emre ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; van Tol, Johan ; Brunei, L. C. (2008):
Characterization of (Fe<sub>Zr,Ti</sub>-V<sub>o</sub> <sup>ldrldr</sup>)<sup>ldr</sup> defect dipoles in (La,Fe)-codoped PZT 52.5/47.5 piezoelectric ceramics by multifrequency electron paramagnetic resonance spectroscopy.
In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 55 (5), pp. 1061-1068. ISSN 0885-3010,
[Article]

Schmitt, Ljubomira A. ; Theissmann, Ralf ; Kling, Jens ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2008):
In situ hot-stage transmission electron microscopy of Pb(Zr0.52Ti0.48)O3.
In: Phase Transitions, 81 (4), pp. 323-329. ISSN 0141-1594,
[Article]

Eichel, Rüdiger-A. ; Erhart, Paul ; Träskelin, Petra ; Albe, Karsten ; Kungl, Hans ; Hoffmann, Michael J. (2008):
Defect-Dipole Formation in Copper-Doped PbTiO3 Ferroelectrics.
In: Physical Review Letters, 100 (9), pp. 095504-1. American Physical Society, ISSN 0031-9007,
[Article]

Balke, Nina ; Kungl, Hans ; Granzow, Torsten ; Lupascu, Doru C. ; Hoffmann, Michael J. ; Rödel, Jürgen (2007):
Bipolar Fatigue Caused by Field Screening in Pb(Zr,Ti)O3Ceramics.
In: Journal of the American Ceramic Society, 90 (12), pp. 070922001254005-3874. ISSN 0002-7820,
[Article]

Erdem, Emre ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; van Tol, Hans ; Brunel, Louis Claude (2007):
Local symmetry-reduction in tetragonal (La,Fe)-codoped Pb[Zr0.4Ti0.6]O3 piezoelectric ceramics.
In: Physica Scripta, (T129), pp. 12-16. Institute of Physics Publishing (IOP), ISSN 0031-8949,
DOI: 10.1088/0031-8949/2007/T129/003,
[Article]

Schönau, Kristin ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2007):
In situ synchrotron diffraction investigation of morphotropic Pb[Zr1−xTix]O3 under an applied electric field.
In: Physical Review B, 76 (14), pp. 144112-1-144112-12. ISSN 1098-0121,
[Article]

Fett, Theo ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Permittivity and loss tangent of unpoled LaSr-doped PZT under compressive loading.
In: Journal of Materials Science, 42 (20), pp. 8753-8756. ISSN 0022-2461,
[Article]

Kungl, Hans ; Hoffmann, Michael J. (2007):
Temperature dependence of poling strain and strain under high electric fields in LaSr-doped morphotropic PZT and its relation to changes in structural characteristics.
In: Acta Materialia, 55 (17), pp. 5780-5791. ISSN 13596454,
[Article]

Puff, Werner ; Balke, Nina ; Kungl, Hans ; Hoffmann, Michael J. ; Balogh, Adam G. (2007):
Effect of Fe-doping and electrical load on the defect structure of Pb(ZrxTi1-x)O3ferroelectric ceramics.
In: physica status solidi (c), 4 (10), pp. 3839-3842. ISSN 18626351,
[Article]

Theissmann, Ralf ; Schmitt, Ljubomira A. ; Kling, Jens ; Schierholz, Roland ; Schönau, Kristin A. ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomains in morphotropic lead zirconate titanate ceramics: On the origin of the strong piezoelectric effect.
In: Journal of Applied Physics, 102 (2), pp. 024111-1. ISSN 00218979,
[Article]

Schönau, Kristin A. ; Schmitt, Ljubomira A. ; Knapp, Michael ; Fuess, Hartmut ; Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomain structure of Pb[Zr_{1−x}Ti_{x}]O_{3} at its morphotropic phase boundary: Investigations from local to average structure.
In: Physical Review B, 75 (18), pp. 184117-1-184117-10. ISSN 1098-0121,
[Article]

Schmitt, Ljubomira A. ; Schönau, Kristin A. ; Theissmann, Ralf ; Fuess, Hartmut ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Composition dependence of the domain configuration and size in Pb(Zr[sub 1−x]Ti[sub x])O[sub 3] ceramics.
In: Journal of Applied Physics, 101 (7), pp. 074107-1. ISSN 00218979,
[Article]

Kungl, Hans ; Theissmann, Ralf ; Knapp, Michael ; Baehtz, Carsten ; Fuess, Hartmut ; Wagner, Susanne ; Fett, Theo ; Hoffmann, Michael J. (2007):
Estimation of strain from piezoelectric effect and domain switching in morphotropic PZT by combined analysis of macroscopic strain measurements and synchrotron X-ray data.
In: Acta Materialia, 55 (6), pp. 1849-1861. [Article]

Kungl, Hans ; Fett, Theo ; Wagner, Susanne ; Hoffmann, Michael J. (2007):
Nonlinearity of strain and strain hysteresis in morphotropic LaSr-doped lead zirconate titanate under unipolar cycling with high electric fields.
In: Journal of Applied Physics, 101 (4), pp. 044101-1-044101-9. ISSN 00218979,
[Article]

Schoenau, Kristin A. ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. ; Fuess, Hartmut (2007):
In situ synchrotron diffraction investigation of morphotropic Pb[Zr1-xTix]O-3 under an applied electric field.
In: Physical Review B, 76, [Article]

Theissmann, Ralf ; Schmitt, Ljubomira A. ; Kling, Jens ; Schierholz, Roland ; Schoenau, Kristin A. ; Fuess, Hartmut ; Knapp, Michael ; Kungl, Hans ; Hoffmann, Michael J. (2007):
Nanodomains in morphotropic lead zirconate titanate ceramics : on the origin of the strong piezoelectric effect.
In: Journal of Applied Physics, 102, [Article]

Granzow, Torsten ; Suvaci, Ender ; Kungl, Hans ; Hoffmann, Michael J. (2006):
Deaging of heat-treated iron-doped lead zirconate titanate ceramics.
In: Applied Physics Letters, 89 (26), pp. 262908-1. ISSN 00036951,
[Article]

Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Kungl, Hans ; Hoffmann, Michael J. (2006):
Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation.
In: Applied Physics Letters, 88 (12), pp. 122506-1. ISSN 00036951,
[Article]

Eichel, Rüdiger-A. ; Meštrić, Hrvoje ; Dinse, Klaus-Peter ; Ozarowski, Andrew ; van Tol, Johan ; Brunel, Louis Claude ; Kungl, Hans ; Hoffmann, Michael J. (2005):
High-field/high-frequency EPR of paramagnetic functional centers in Cu2+- and Fe3+-modified polycrystalline Pb[ZrxTi1−x]O3 ferroelectrics.
In: Magnetic Resonance in Chemistry, 43 (S1), pp. 166-173. ISSN 0749-1581,
[Article]

MacLaren, Ian ; Schmitt, Ljubomira A. ; Fuess, Hartmut ; Kungl, Hans ; Hoffmann, Michael J. (2005):
Experimental measurement of stress at a four-domain junction in lead zirconate titanate.
In: Journal of Applied Physics, 97 (9), pp. 094102-1-094102-8. ISSN 00218979,
[Article]

Eichel, Rüdiger-A. ; Dinse, Klaus-Peter ; Kungl, Hans ; Hoffmann, Michael J. ; Ozarowski, Andrew ; van Tol, Johan ; Brunel, Louis Claude (2005):
Exploring the morphotropic phase boundary in copper(II)-modified Pb[Zr0.54Ti0.46]O3 ferroelectrics.
In: Applied Physics A, 80 (1), pp. 51-54. [Article]

Gottschalk, Sebastian ; Hahn, Horst ; Balogh, Adam G. ; Puff, Werner ; Kungl, Hans ; Hoffmann, Michael J. (2004):
A positron lifetime study of lanthanum and niobium doped Pb(Zr[sub 0.6]Ti[sub 0.4])O[sub 3].
In: Journal of Applied Physics, 96 (12), pp. 7464-7470. American Institute of Physics, ISSN 00218979,
[Article]

Puff, Werner ; Kungl, Hans ; Hoffmann, Michael J. ; Gottschalk, Sebastian ; Balogh, Adam G. (2004):
Vacancy-like defects in doped Pb(Zr60Ti40)O-3 observed by positron lifetime and coincident Doppler spectroscopy.
In: POSITRON ANNIHILATION, ICPA-13, PROCEEDINGS, 445 (6), pp. 171-173. MATERIALS SCIENCE FORUM, ISSN 0255-5476,
[Article]

Eichel, Rüdiger-A. ; Kungl, Hans ; Hoffmann, Michael J. (2004):
Determination of functional center local environment in copper-modified Pb[Zr[sub 0.54]Ti[sub 0.46]]O[sub 3] ceramics.
In: Journal of Applied Physics, 95 (12), pp. 8092-1. ISSN 00218979,
[Article]

Hoffmann, Michael J. ; Kungl, Hans (2004):
High strain lead-based perovskite ferroelectrics.
In: Current Opinion in Solid State and Materials Science, 8 (1), pp. 51-57. ISSN 13590286,
[Article]

Hoffmann, Michael J. ; Hammer, Matthias ; Hammer, A. ; Endriss, A. ; Lupascu, Doru C. (2001):
Correlation between microstructure, strain behavior, and acoustic emission of soft PZT ceramics.
In: Acta Materialia, 49 (7), pp. 1301-1310. ISSN 1359-6454,
[Article]

Hammer, Matthias ; Endriss, A. ; Lupascu, Doru C. ; Hoffmann, Michael J. (2000):
Influence of microstructure on microscopic and macroscopic strain behavior of soft PZT ceramics.
In: NATO ADVANCED SCIENCE INSTITUTE SERIES, SUB-SERIES 3, HIGH TECHNOLOGY, In: Piezoelectric materials: advances in science, technology and applications. Hrsg.: C. Galassi. - Dordrecht: Kluwer Acad. Publ., 2000. S. 137-147, pp. 137-147, Dordrecht, Kluwer Acad. Publ., ISBN 0-7923- 6212-8,
[Book Section]

Hoffmann, Michael J. ; Fiedler, Udo ; Emmel, Thomas ; Prielipp, Helge ; Claussen, Nils ; Gross, Dietmar ; Rödel, Jürgen (1997):
Fracture behaviour in fibre reinforced ceramics.
45, In: Acta Materialia, (9), pp. 3609-3623. ISSN 1359-6454,
[Article]

Dreßler, Wolfgang ; Kleebe, Hans-Joachim ; Hoffmann, Michael J. ; Rühle, Manfred ; Petzow, Günter (1996):
Model experiments concerning abnormal grain growth in Silicon Nitride.
In: Journal of the European Ceramic Society, 16 (1), pp. 3-14. Elsevier Science Publishing, ISSN 0955-2219,
DOI: 10.1016/0955-2219(95)00175-1,
[Article]

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