SiC/Si3N4 nano/micro-composite : processing, RT and HT mechanical properties
Two SiC/Si3N4 nano/micro composites were prepared from a starting mixture of crystalline alpha-Si3N4, amorphous SiNC, Y2O3 and/or Al2O3. The composite material for room temperature (RT) application has high strength of 1200 MPa, Weibull modulus of 19 and moderate fracture toughness of 7 MPa.m1/2. Th...
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Published in | Journal of the European Ceramic Society Vol. 20; no. 4; pp. 453 - 462 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier
01.04.2000
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Subjects | |
Online Access | Get full text |
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Summary: | Two SiC/Si3N4 nano/micro composites were prepared from a starting mixture of crystalline alpha-Si3N4, amorphous SiNC, Y2O3 and/or Al2O3. The composite material for room temperature (RT) application has high strength of 1200 MPa, Weibull modulus of 19 and moderate fracture toughness of 7 MPa.m1/2. The composite for high temperature (HT) application, without Al2O3, has RT strength of 710 MPa and is able to keep 60% of its RT strength up to 1300 C. The creep resistance is approximately 1 order higher compared to the relative monolith up to 1400C. 19 refs. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0955-2219 |
DOI: | 10.1016/s0955-2219(99)00176-4 |