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RobertM. Williams Andre Ezis John C. Caverly G.Y. Onoda 《Journal of the American Ceramic Society》1984,67(4):c64-c66
The properties of Si3 N4 compositions produced by nitriding slip-cast Si bodies containing up to 16% Si3 N4 grog were determined. The introduction of grog consistently lowered the densities, the room- and high-temperature strengths, and the resistance to oxidation. The open structure of the grog-containing mixes favored low-temperature gas-phase reactions leading to α-Si3 N4 formation. In higher-density compositions containing predominantly Si, gas-liquid-solid reactions at higher temperatures produced a relatively greater content of the β phase. 相似文献
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