Optically transparent yttrium oxide

Details Optically transparent yttrium oxide Optically transparent yttrium oxide

C - Chemistry, Metallurgy

04

B

25/141

C04B 35/50 (2006.01) C04B 35/505 (2006.01) H01J 61/30 (2006.01)

Patent

CA 1303825

Abstract of the Disclosure A transparent yttrium oxide ceramic is made by densifying a yttrium oxide powder without addition of dopants. The yttrium oxide powder is consolidated into a body of a prede- termined shape and sintered to a density such that any remain- ing porosity is sealed from the surrounding atmosphere. The closed porosity body is then subjected to an elevated pressure and temperature to provide the body with substantially 100% of theoretical density. The resulting body has substantial transparency over the wavelength range of .6 µm to 7 µm.

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