发明名称 |
High thermal conductivity aluminum nitride ceramic body |
摘要 |
The process comprises forming a mixture comprised of aluminum nitride powder and free carbon wherein the aluminum nitride has a predetermined oxygen content higher than about 0.8% by weight and wherein the amount of free carbon reacts with such oxygen content to produce a deoxidized powder or compact having an oxygen content ranging from greater than about 0.35% by weight to about 1.1% by weight and which is at least 20% by weight lower than the predetermined oxygen content, heating the mixture or a compact thereof to react the carbon and oxygen producing the deoxidized aluminum nitride, and sintering a compact of the deoxidized aluminum nitride producing a ceramic body having a density greater than 85% of theoretical and a thermal conductivity greater than 0.5 W/cmxK. at 22 DEG C.
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申请公布号 |
US4533645(A) |
申请公布日期 |
1985.08.06 |
申请号 |
US19840629666 |
申请日期 |
1984.07.11 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
HUSEBY, IRVIN C.;BOBIK, CARL F. |
分类号 |
C04B35/581;(IPC1-7):C04B35/58 |
主分类号 |
C04B35/581 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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