Number | Name | Date | Kind |
---|---|---|---|
2628896 | Erasmus et al. | Feb 1953 | |
2750268 | Erasmus et al. | Jun 1956 | |
3269815 | Koopman | Aug 1966 | |
3508890 | Fontanella | Apr 1970 | |
3520667 | Taylor | Jul 1970 | |
4115959 | McCormick | Sep 1978 | |
4249913 | Johnson et al. | Feb 1981 | |
4286905 | Samanta | Sep 1981 | |
4336304 | Landingham et al. | Jun 1982 | |
4340568 | Hirsi et al. | Jul 1982 | |
4416912 | Bache | Nov 1983 | |
4424066 | Sarin et al. | Jan 1984 |
Number | Date | Country |
---|---|---|
4950008 | Sep 1972 | JPX |
7145086 | Feb 1981 | JPX |
7145087 | Feb 1981 | JPX |
7145088 | Feb 1981 | JPX |
7145089 | Feb 1981 | JPX |
Entry |
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"An Abrasive Material Based on Silicon Nitride for Grinding Unhardened Steels", I. I. Osipova et al., Institute of Materials Science, Academy of Sciences, Ukrainian SSR. No. 5, (1973), pp. 34-37, May, 1977, (Trans.Poroshkovaya Metalurgiya). |
"Possibility of Silicon Nitride as Abrasive Grain", pp. 155-156, Bulletin, Japan Soc. of Prec. Engg., vol. 13, No. 3, (Sep. 1979). |
Preparation and Properties of Solid State Materials, W. R. Wilcox, ed., vol. 7, Chapter 2, Marcel Dekker Inc., New York, (1982) D. R. Messier et al., "Silicon Nitride". |