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Staff Members Head Prof. Dr. Jürgen Rödel Research Associates Dr. Torsten Granzow Dr. Olivier Guillon Dr. Alain Brice Kounga Njiwa Technical Personnel Secretaries PhD Students Dr. Ludwig Weiler Dr. Ruzhong Zuo Dr. Nina Balke Emil Aulbach Herbert Hebermehl Roswita Geier M. Sc. Ilona Westram Dipl.-Ing. Julian Mircea Dipl. Min. Ingo Kerkamm M. Phys. Klaus Seifert M. Sc. Jami Winzer Dipl. Phys. Julia Glaum Dipl.-Ing. Thorsten Leist Diploma Students Lotta Gaab Markus König Silke Schaab Martin Molberg Bernd Meidel Andrea Engert Guest Scientists Research Projects Martin Frommherz Gila Völzke Dipl.-Phys. Thorsten Schlegel Dipl.-Ing. Johanna Wallot Dipl.-Ing. Daniel Meyer Dipl.-Ing. J.-Baptiste Ollagnier Dipl.-Ing. Silke Schaab Dipl.-Ing. Jochen Langer Dipl.-Ing. Markus König Goran Pavlovic Jochen Langer Thorsten Leist Joel Kamwa Florian Straub Prof. Dr. Sang Kezheng (University Xian) Dr. Shan-Tao Zhang (University Nanjing) Prof. Dr. David Green (Pennsylvania State University) Zuzanna Pouiznik (IPPT Warschau) Simonas Greicius (Universität Vilnius, Litauen) Andrius Lektutis (Universität Vilnius, Litauen) Julius Pozingis (Universität Vilnius, Litauen) Jaemyung Chang (KAIST, Südkorea) Enzo Chiarullo (Universität Mailand) Crack growth in ferroelectrics driven by cyclic electric loading (DFG and NSFC, 2002- 2006) Processing of textured ceramic actuators with high strain (SFB 595, 2003-2006) Model experiments to describe the interaction between ferroelectric domains and agglomerates (SFB 595 2003-2006) - 16 -
Mesoscopic and macroscopic fatigue in doped ferroelectric ceramics (SFB 595), 2003- 2006 Development of anisotropy during sintering of LTCC materials (DFG, 2004-2006) Sintering of TiO2 with additives (Merck, 2004-2007) Knowledge-based multicomponent materials (EU, 6 th framework programme, 2004-2008) Electrooptical properties of PLZT (DFG 2006-08) High-temperature piezoceramics (DFG 2006-08) Printed Electronics: Thin film ZnO (Merck 2006-09) Developing a ceramic roadmap (DFG 2005-07) Publications Kounga Njiwa, A. B.; Fett, T.; Lupascu D.C.; Rödel, J.; Effect of Geometry and electrical boundary conditions on R-curves for lead zirconate titanate; Eng. Fract. Mech., 73 (2006) 309. Bordia R. K.; Zuo R.; Guillon O.; Salamone S.M.; Rödel J.; Anisotropic Constitutive Laws for Sintering Bodies; Acta Materialia, 54 (2006) 111. Lupascu D. C.; Genenko Y. A.; Balke N.; Aging in Ferroelectrics; J. Am. Ceram. Soc., 89 [1] (2006) 224. Rao B. S.; Hemambar C.; Pathak A. V.; Pathel K. J.; Rödel J.; Jayram V.; Al/SiC Carriers for Microwave Integrated Circuits by a New Technique of Pressureless Infiltration; IEEE Transactions on Electronic Packaging Manufacturing, 29 [1] (2006) 58. Kounga Njiwa A. B.; Aulbach E.; Rödel J.; Turner S. L.; Comyn T. P.; Bell A. J.; Ferroelasticity and R-Curve Behavior in BiFeO3–PbTiO3; J. Am. Ceram. Soc., 89 [5] (2006) 1761. Zuo R.; Rödel J.; Chen R.; Li L.; Sintering and Electrical Properties of Lead-Free Na0.5K0.5NbO3 Piezoelectric Ceramics; J. Am. Ceram. Soc., 89 [6] (2006) 2010. Granzow T.; Kounga A. B.; Aulbach E.; Rödel J.; Electromechanical poling of piezoelectrics; Appl. Phys. Lett., 88 (2006) 252907. Kounga Njiwa A. B.; Aulbach E.; Rödel J.; Mechanical Properties of Dry-Pressed Powder Compacts: Case Study on Alumina Nanoparticles; J. Am. Ceram. Soc., 89 [8] (2006) 2641. Eichler J.; Hoffman M.; Eisele U.; Rödel J.; R-curve behaviour of 2Y-TZP with submicron grain size; J. Eur. Ceram Soc., 26 (2006) 3575. - 17 -
Page 1: ANNUAL REPORT 2 0 0 6 FACULTY OF MA
Page 4 and 5: Annual Report 2006 Faculty 11 Mater
Page 6 and 7: Preface The year 2006 of the Depart
Page 8 and 9: difference of numerical and analyti
Page 10 and 11: Institute of Materials Science Phys
Page 12 and 13: Research Projects Bulk Amorphous Al
Page 14 and 15: el Dsoki, C.; Landersheim, V. ; Kau
Page 16 and 17: Das, J.; Kim, K. B.; Xu, W.; Wei, B
Page 20 and 21: Zhou L.; Rixecker G.; Aldinger F.;
Page 22 and 23: concerned with the synthesis and ch
Page 24 and 25: Publications Fleissner, A.; Schmid,
Page 26 and 27: • Surface analysis The UHV-surfac
Page 28 and 29: T. Mayer, U. Weiler, E. Mankel and
Page 30 and 31: Thin films The Thin Film division w
Page 32 and 33: Berky, W.; Gottschalk, S.; Elliman,
Page 34 and 35: Guest Scientists Research Projects
Page 36 and 37: Hesse, S.; Zimmermann, J.; von Segg
Page 38 and 39: Structure Research The research in
Page 40 and 41: Research Projects Functional Advanc
Page 42 and 43: Dincer, I.; Elerman, Y.; Elmali, A;
Page 44 and 45: hexakis(imidazole)nickel(II)bis(for
Page 46 and 47: Chemical Analytics The chemical ana
Page 48 and 49: Collaborations The above mentioned
Page 50 and 51: Hoffmann, P.; Non-Invasive Identifi
Page 52 and 53: Ferroelectrics For this class of ma
Page 54 and 55: Materials Modelling The research ac
Page 56 and 57: Materials for Renewable Energies In
Page 58 and 59: Joint Research Laboratory Nanomater
Page 60 and 61: Collaborative Research Center (SFB)
Page 62 and 63: B7 P.I.: Prof. H. v. Seggern / Dr.
Page 64 and 65: The glass transition temperature (T
Page 66 and 67: transition allows to investigate at
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Relative density 1.00 0.95 0.90 0.8
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Fig. 2 shows the time dependencies
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Dielectric interface trap engineeri
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∆V C q th eff 12 −2 p ( VGS = 0
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Fig. 3: Schematic of the photovolta
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synthesis and analysis of interface
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Fig. 2: Resistivity vs temperature
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Fig. 2: X-ray appearance near-edge
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Capacity [mAhg -1 ] 700 600 500 400
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Texture investigations and field em
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screening effects. Gold coating of
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Figure 2 shows a selected region of
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The spectrum shows that apart from
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The effect of crystallinity on the
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Electrochemical investigation and c
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This phenomenon can be understood c
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∆ = 0 − exhibiting dominance of
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constituents. The requirement of va
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In order to assess the influence of
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In this study, we have therefore de
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Fig. 1: Proposed models for a) Pt,
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Synthesis of oxide-polymer nanocomp
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Diploma Theses Böhme, Mario; Herst
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Sperling, Sebastian; Untersuchungen
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Institute of Applied Geosiences Phy
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Research Projects Geomorphology and
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Engineering Geology Engineering Geo
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Investigation of a Doline in NE-Hes
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Applied Sedimentology Sedimentary r
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econstruction.(Diploma thesis in co
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Darmstadt University of Technology
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Geomaterials Science Geomaterial Sc
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Gregori, G.; Kleebe H.-J.; Sorarù,
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Hessische Industriemüll GmbH). Due
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Technical Personnel Josef Kolb, Dip
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Research Projects Environmental sca
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Fig. 1: Aerial photo of the Lake Li
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Lithological Map of the Japanese Ar
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tower stripping, and therefore much
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Diffusion and reaction in micro- an
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Rift dynamics, uplift and climate c
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Geology, land use change and erosio
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nearly half a century has been perf
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The Effect of LiF Addition on the S
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In case of the undoped sintered B6O
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Microstructures in Omphacite and Ot
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Modelling phase-assemblage diagrams
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As an example, Fig. 2 shows the che
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MATERIALS SCIENCE Physical Metallur
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