Heat resistive and reinforced composite material

Details Heat resistive and reinforced composite material Heat resistive and reinforced composite material

1973-07-23

1976-07-13

Arnold, Donald J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 735, 264 63, 264 66, 264332, C04B 3550

Patent

active

039691250

ABSTRACT:
We had previously disclosed a heat resistive and reinforced composite material which was prepared by sintering a finely powdered mixture of trisilicon tetranitride and an oxide of yttrium group elements.
More improved similar composite material having excellent bending strength can be obtained by sintering a finely powdered mixture of trisilicon tetranitride, yttrium oxide and aluminum oxide. Cerium oxide, lanthanum oxide or scandium oxide can also be used instead of yttrium oxide.

REFERENCES:
patent: 3262761 (1966-07-01), Bechtold
patent: 3549402 (1970-12-01), Whitney
Mazdiyasni et al., "Consolidation, Microstructure, and Mechanical Properties of Si.sub.3 N.sub.4 Doped with Rare-Earth Oxides," J. Am. Cu. Soc., 57[12], pp. 536-537, (Dec. 1974).

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