C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/58 (2006.01) C04B 35/584 (2006.01)
Patent
CA 2045563
2045563 9008113 PCTABS00001 A monolithic silicon nitride based ceramic is densified and heat treated in the presence of a sintering aid at a temperature of at least about 1850·C for a time period of at least 30 minutes. The ceramic has R-curve behavior and a Chevron Notch fracture toughness greater then 9 MPa.m0.5.
Carrasquillo Gilbert
Li Chien-Wei
Yamanis Jean
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
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