Forschungsbericht 1999-2000   
WWU-Logo Institut für Materialphysik
(ehemals Institut für Metallforschung)

Wilhelm-Klemm-Str. 10
48149 Münster
Tel. (0251) 83-3 35 71
Fax: (0251) 83-3 83 46
e-mail: mehrer@nwz.uni-muenster.de
WWW: http://www.uni-muenster.de/Physik/MF

Geschäftsführender Direktor: Prof. Dr. H. Mehrer

 
 
 
[Pfeile  gelb] Forschungsschwerpunkte 1999 - 2000
Fachbereich 11 - Physik
Institut für Materialphysik
 
  The academic staff of the Institut für Materialphysik currently comprises three professors, two assistant professors ("Habilitanden"), and one emeritus. The service staff including secretaries, laboratory technicians, electronic and mechanical workshop members amounts to eleven permanent employees. Furthermore, presently six postdoctoral fellows and scientific guests are members of the institute. In addition about twenty graduate students (diploma and doctoral degree) are working in the laboratories of the institute. Some of them are teaching assistants supported by funds of the institute, most of them are supported by research grants.

Research projects at the Institut für Materialphysik are usually carried out by small groups or by individuals supervised by one of the professors. A substantial part of the research activities is pursued by graduate students within time-limited research grants during their dissertation. Many research projects require cooperations with groups at our own university, at other universities in Germany and abroad, and at national or international research centers.

The service facilities of the institute include a mechanical and an electronic workshop. The institute is equipped with various facilities for teaching and research in the area of materials science. We mention some of the more important examples: well equipped laboratories for work with radioisotopes in diffusion research, various detection facilities for radionuclides, mechanical and sputtering devices for depth profiling, electron microprobe analyser, analytical transmission electron microscope, X-ray facilities including powder diffractometer, Laue- and Debye-Scherrer camera, optical metallography, spark erosion facilities, a variety of high-temperature furnaces for melting materials, for growing single-crystals, and for annealing, tensile testing machine, spreading resistance devices and an electrochemical capacitance-voltage device for depth profiling of doping elements in semiconductors, deep level transient spectroscopy for semiconductors, impedance spectroscopy for ion conducting materials, high pressure cell up to 0.8 GPa.

In January 2000, a new Sonderforschungsbereich (SFB 458) has been established by the Deutsche Forschungsgemeinschaft at the Westfälische Wilhelms-Universität Münster. In close cooperation, research groups from the Faculty of Natural Sciences coordinate their efforts towards the topic "Ionic motion in materials with disordered structures". The aim of the Sonderforschungsbereich is a better understanding of ionic motion from the elementary jump process of ions up to their macroscopic transport properties. Presently, the Institut für Materialphysik contributes three research projects in the areas of ion conducting glasses and polymer electrolytes to the program of the Sonderforschungsbereich.

 

 A  Diffusion in Metals, Intermetallics, and Silicides
   1      Diffusion in metals
   2      Diffusion in intermetallic phases of the system Al-Fe
   3      Diffusion in the intermetallic Laves-phase Co2Nb
   4      Diffusion in iron silicides
   5      Diffusion in molybdenum disilicide
   6      Multiphase diffusion in the system Al-Mg
   7      Self- and solute diffusion in titanium aluminides
   8      Nickel self-diffusion in the B2-compounds NiAl and (Ni,Fe) Al
 B  Physics of Strengthening Metals and Alloys
   1      Critical review of order strengthening
   2      Computer simulations of particle strengthening
   3      Superposition of solid solution and dispersion strengthening in the system (Cu-0.65at.%Au)- SiO2
   4      Comparison of atomic force and transmission electron microscopy of second phase particles
 C  Diffusion and Segregation in Grain and Interphase Boundaries
   1      Diffusion and solute atom segregation in grain boundaries of copper and silver
   2      Atomic motion in crystallographically oriented grain- and interphase boundaries
   3      Interface diffusion in intermetallic compounds
 D  Diffusion and Defects in Elementary and Compound Semiconductors
   1      Electrical characterisation of impurities and defects in semiconductors
   2      Diffusion in elementary semiconductors
   3      Diffusion in bulk crystals and heterostructures of compound semiconductors
 E  Structure and Mechanical Properties of Intermetallics
   1      Strengthening of an L12-ordered g'-intermetallic by disordered g- precipitates
   2      Dislocation processes in B2 and L12 ordered intermetallics
   3      Analytical representation of the anisotropy and tension/compression asymmetry of the critical resolved shear stress of an L12- ordered intermetallic
   4      Determination of the specific antiphase boundary energy of the L12-ordered g'-phases which strengthen the commercial superalloys NIMONIC PE16 and NIMONIC 105
   5      Determination of the specific antiphase boundary energy of L12-ordered precipitates by the minimum dislocation loop size method
 F  Strength of Superalloys
   1      The decrease of the strength of superalloys at high temperatures
   2      The effect of precipitate free zones along grain boundaries on the yield strength of the nickel-base superalloy NIMONIC PE16
 G  Glassy and Quasicrystalline Metallic Materials
   1      Diffusion in bulk metallic glasses
   2      Diffusion in icosahedral quasicrystals
   3      Diffusion in decagonal Al-Ni-Co quasicrystals
 H  Ionic Motion in Materials with Disordered Structures
   1      Diffusion and ionic conductivity in borate glasses
   2      Diffusion in mixed alkaline alkaline-earth silicate glasses
 
 
[Startseite (Rektorat)] [Inhaltsverzeichnis] [vorherige Seite] [nächste Seite]

Hans-Joachim Peter
EMail: vdv12@uni-muenster.de
HTML-Einrichtung: Izabela Klak
Informationskennung: FO11G
Datum: 2001-03-16 ---- 2001-05-22