| Autor: |
Grigor'ev, O., Koroteev, A., Klimenko, A., Mayboroda, E., Prilutskii, E., Bega, N. |
| Zdroj: |
Refractories & Industrial Ceramics; Nov2000, Vol. 41 Issue 11/12, p390-395, 6p |
| Abstrakt: |
The influence of the structure and residual stresses on the strength of multilayer composite ceramic materials in the SiC – MeB2 system is studied. The composites are produced using slip casting of thin films, stacking and rolling of packets, and hot pressing. The use of β-SiC makes it possible to obtain SiC layers with a porous arch structure reinforced with columnar crystals. The high relaxation capacity of such structures eliminates the formation of cracks in fabrication of the material and provides a high strength. A thermal shock causes progressive local spalling with formation of spit-outs without macroscopic fracture of the material. A pilot process for fabricating multilayer ceramic composites is described. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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