SiC-MoSi/sub 2/ composites
Previous studies have shown that SiC whisker-reinforced MoSi/sub 2/ is an excellent candidate material for structural use at elevated temperatures. The yield strength at 1400/degree/C was doubled with the addition of Los Alamos VLS SiC whiskers, and increased by a factor of five with the addition of VS SiC whiskers, despite a non-optimal distribution of the reinforcement resulting from dry blending fabrication procedures. A more optimal wet processing technique, providing a much more uniform distribution of the whisker reinforcement will be discussed. Activities directed at alloying MoSi/sub 2/ with other silicides to improve the mechanical properties of the matrix material will also be described. 6 refs., 5 figs., 1 tab.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5930231
- Report Number(s):
- LA-11577-MS; ON: DE89013656
- Country of Publication:
- United States
- Language:
- English
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SiC whisker-reinforced MoSi/sub 2/
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Related Subjects
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CARBIDES
CARBON COMPOUNDS
CERAMICS
COMPOSITE MATERIALS
CRYSTALS
FABRICATION
FRACTURE PROPERTIES
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM COMPOUNDS
MOLYBDENUM SILICIDES
MONOCRYSTALS
REFRACTORY METAL COMPOUNDS
SILICIDES
SILICON CARBIDES
SILICON COMPOUNDS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
WHISKERS