Number | Date | Country | Kind |
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7-174607 | Jul 1995 | JPX |
Number | Name | Date | Kind |
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5006491 | Ueda et al. | Apr 1991 |
Number | Date | Country |
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57-123868 | Aug 1982 | JPX |
7-223863 | Aug 1995 | JPX |
Entry |
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M. Asayama et al., The proceedings of the 1993 Annual Meeting of the Japan Ceramic Society, "The Effect of Halogen Impurities in Raw Powder on Mechanical Properties of Si.sub.3 N.sub.4 Sintered Bodies"--p. 611. |
I. Tanaka et al., "High-Temperature Strength of Fluorine-Doped Silicon Nitride", Journal of the American Ceramic Society, vol. 77, No. 1 (1994), pp. 275-277. |