Transparent polycrystalline yttrium aluminum garnet

Details Transparent polycrystalline yttrium aluminum garnet Transparent polycrystalline yttrium aluminum garnet

C - Chemistry, Metallurgy

04

B

C04B 35/115 (2006.01) C04B 35/44 (2006.01) C04B 35/48 (2006.01) C04B 35/50 (2006.01) C04B 35/505 (2006.01) H01J 61/30 (2006.01)

Patent

CA 2472949

A transparent polycrystalline yttrium aluminum garnet (YAG) ceramic is described wherein the ceramic is colorless and transparent in both as-sintered and post-sinter, air-fired states which makes it highly desirable for lamp applications. The transparent YAG ceramic is co-doped with an amount of MgO and an amount of ZrO2 wherein the weight ratio of MgO to ZrO2 is from about 1.5:1 to 3:1.

Divulgation d'une céramique transparente et polycristalline d'yttrium/aluminium/grenat (YAG), cette céramique étant incolore et transparente dans les états tel que fritté, post-frittage et chauffée dans l'air, ce qui la rend très propice à des applications de lampes. Cette céramique YAG transparente est co-dopée avec une quantité de MgO et une quantité de ZrO2 dans un rapport massique MgO/ZrO2 allant d'environ 1,5/1 à 3/1.

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