Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1979-12-13
1982-06-22
McCamish, Marion
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
423324, 423395, 423625, 427190, 427255, 427199, 428446, 428689, 428698, 428702, C23C 1108
Patent
active
043363059
ABSTRACT:
A ceramic throw-away tip which comprises a hot-pressed sinter of Si.sub.3 N.sub.4 on the surface of which is a thin coating of at least one of Al.sub.2 O.sub.3 and AlON.
REFERENCES:
patent: 3914473 (1975-10-01), Hale
McCamish Marion
NGK Spark Plug Co. Ltd.
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