Fundamental alloy design of oxide ceramics and their composites. [Annual] report, May 1, 1990--August 31, 1992

Technical Report · Thu Dec 31 04:00:00 EST 1992

DOI:https://doi.org/10.2172/10133855· OSTI ID:10133855

Chen, I W

The main research was on microstructural development of oxide ceramics. Projects were completed and the publications given. Abstracts are given on: Reactive CeO{sub 2}powders by homogeneous precipitation, SiC whisker-reinforced lithium aluminosilicate composite, solute drag on grain boundary in ionic solids (space charge effect), in-situ alumina/aluminate platelet composites, exaggerated texture and grain growth of superplastic silicon nitride (SiAlON), hot extrusion of ceramics, control of grain boundary pinning in Al{sub 2}O{sub 3}/ZrO{sub 2} composites with Ce{sup 3+}/Ce{sup 4+} doping, superplastic forming of ceramic composites, computer simulation of final stage sintering (model, kinetics, microstructure, effect of initial pore size), development of superplastic structural ceramics, and superplastic flow of two-phase ceramics containing rigid inclusions (zirconia/mullite composites). A proposed research program is outlined: materials, solute drag, densification and coarsening, and grain boundary electrical behavior.

• Research Organization: Michigan Univ., Ann Arbor, MI (United States). Dept. of Materials Science and Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: FG02-87ER45302
• OSTI ID: 10133855
• Report Number(s): DOE/ER/45302--6; ON: DE93010249
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360200
360600
ALUMINATES
ALUMINIUM OXIDES
ALUMINIUM SILICATES
CERAMICS
CERAMICS, CERMETS, AND REFRACTORIES
CERIUM ADDITIONS
CERIUM OXIDES
COMPOSITE MATERIALS
COMPUTERIZED SIMULATION
DOPED MATERIALS
EXTRUSION
GRAIN BOUNDARIES
LITHIUM SILICATES
MULLITE
OTHER MATERIALS
OXIDES
PLASTICITY
POROSITY
PROGRESS REPORT
REINFORCED MATERIALS
RESEARCH PROGRAMS
SILICON CARBIDES
SILICON NITRIDES
SINTERING
WHISKERS
ZIRCONIUM OXIDES