Thermal conductive colored aluminum nitride sintered body...

Details Thermal conductive colored aluminum nitride sintered body... Thermal conductive colored aluminum nitride sintered body...

C - Chemistry, Metallurgy

04

B

C04B 35/581 (2006.01)

Patent

CA 2048498

Disclosed herein is an A?N sintered body which is colored, excellent in thermal conductivity and useful as an electronic material, and a method of preparing the same. The thermal conductive colored A?N sintered body contains 100 parts by weight of A?N, 0.005 to 0.5 parts by weight of carbon, not more than 1 part by weight of a boron compound in terms of the simple substance of boron, 0.01 to 15 parts by weight of a rare earth aluminum oxide in terms of the simple substance of the rare earth element, and 0.01 to 15 parts by weight of a compound containing an element belonging to the group IVB of the periodic table in terms of the simple substance of the element, and its thermal conductivity is 100 to 270 W/mK at the ordinary temperature. This A?N sintered body is obtained by shaping a mixture into a prescribed configuration and thereafter firing the as-formed compact in a non-oxidizing atmosphere containing at least 10 percent by volume of nitrogen under a temperature of 1500 to 2100°C. - 48 -

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