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1. 发明申请

US20070184966A1 Aluminum nitride powder and aluminum nitride sintered compact 有权
标题翻译：氮化铝粉末和氮化铝烧结体
公开(公告)号：US20070184966A1
公开(公告)日：2007-08-09
申请号：US10590942
申请日：2005-03-29
申请人： Takeshi Gotoh , Hiroshi Murata , Kohki Ichikawa
发明人： Takeshi Gotoh , Hiroshi Murata , Kohki Ichikawa
IPC分类号： C04B35/00 , C23C8/24
CPC分类号： C01B21/0722 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/80 , C04B35/581 , H05K1/0306
摘要： To provide an aluminum nitride powder and an aluminum nitride sintered body which satisfy both high thermal conductivity of an aluminum nitride sintered body and reduction in the shrinkage factor at the time of sintering. An aluminum nitride powder characterized in that it has local maximum values in size in regions of from 3 to 15 μm, from 0.5 to 1.5 μm and 0.3 μm or less, the proportions of particles in the respective regions are from 40 to 70%, from 25 to 40% and from 0.5 to 20% on the volume basis, and it has an oxygen amount of from 0.5 to 1.5 mass %. An aluminum nitride sintered body which is a sintered body of a powder mixture containing the above aluminum nitride powder and a sintering aid, characterized by having a thermal conductivity of at least 190 W/m·K and a shrinkage factor represented by the percentage of {(dimensions of the molded body before sintering)−(dimensions of the sintered body after sintering)}/(dimensions of the molded body before sintering) of at most 15%.
摘要翻译：提供一种氮化铝粉末和氮化铝烧结体，它们既满足氮化铝烧结体的高导热性，又降低了烧结时的收缩率。一种氮化铝粉末，其特征在于其在3至15μm的范围内具有局部最大值，0.5至1.5μm和0.3μm或更小，各个区域中的颗粒的比例为40至70％，从 25〜40％，0.5〜20％，氧浓度为0.5〜1.5质量％。一种氮化铝烧结体，其是含有上述氮化铝粉末和烧结助剂的粉末混合物的烧结体，其特征在于具有至少190W / mK的热导率和由{（尺寸（烧结前的烧结体的尺寸）} /（烧结前的成型体的尺寸）为15％以下。

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