Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Including specified molding pressure or controlling of...
Reexamination Certificate
2007-01-16
2007-01-16
Lopez, Carlos (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Including specified molding pressure or controlling of...
C264S668000
Reexamination Certificate
active
10146945
ABSTRACT:
A dense polycrystalline aluminum oxynitride body is produced. According the method of production, aluminum oxide (alumina) powder and 26 to 40 mole % aluminum nitride powder is mixed to form a very fine powder mixture. The powder mixture is shaped and hot pressed at a moderate temperature, preferably about 1600° C., which is below the temperature of aluminum oxynitride (AlON) formation to produce a dense intermediate body. The dense intermediate body is reacted to produce a highly dense polycrystalline aluminum oxynitride body. The dense body is particularly useful for ballistic armor.
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Gilde Gary A.
Lasalvia Jerry C.
Patel Parimal J.
Lopez Carlos
Randolph William
The United States of America as represented by the Secretary of
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