US PATENT SUBCLASS 501 / 92
.~.~.~ And boride, silicide, nitride, or oxynitride
Current as of:
June, 1999
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501 /
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COMPOSITIONS: CERAMIC
1
DF
CERAMIC COMPOSITIONS
{15}
87
DF
.~ Carbide or oxycarbide containing {2}
88
DF
.~.~ Silicon carbide {4}
92
.~.~.~ And boride, silicide, nitride, or oxynitride
DEFINITION
Classification: 501/92
And boride, silicide, nitride, or oxynitride:
(under subclass 88) Compositions which contain a silicide, boride, nitride, or oxynitride, in addition to silicon carbide.
(1) Note. A silicide is a binary compound of a metal or other more positive element with silicon, e.g., Mg
2
Si.
(2) Note. A boride is a binary compound of boron with a more positive element, e.g., Mg
3
B
2
, Si
3
B
4
.
(3) Note. A nitride is a binary compound of nitrogen with a metal, e.g., Mg
3
N
2
.
(4) Note. An oxynitride is a ternary compound of nitrogen, oxygen and a more positive element of the form Si
2
ON
2
.
