High strength silicon nitride

Details High strength silicon nitride High strength silicon nitride

C - Chemistry, Metallurgy

04

B

25/133

C04B 35/58 (2006.01) C04B 35/593 (2006.01)

Patent

CA 1322269

CD-5884G HIGH STRENGTH SILICON NITRIDE ABSTRACT OF THE DISCLOSURE An improved silicon nitride material characterized by high mechanical strength at high temperatures comprising a combination of approximately 0.5 - 6.0% by weight of strontium oxide, 2.0 12.0% by weight of yttrium oxide and the balance silicon nitride. The improved material is densified by either an encapsulated hot isostatic pressing method or an encapsulated sinter/HIP method and can be utilized to form near net shape articles.

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