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发明名称
铝氧粉末
摘要
本发明提供一种铝氧粉末,其特征为:纯度为99.99质量%以上,比表面积为0.1㎡/g至2.0㎡/g,而相对密度为55%至90%的范围,封闭气孔率为4%以下,于依JISK 0069(1992年版)的乾式筛分析试验所求得之乾式筛选粒径的质量基准之粒度分布中,粒径未达75m之粒子为5质量%以下,粒径2.8㎜以上之粒子为15质量%以下,于粒径100m以上,未达850m的区域显示1个以上的极大频率。该铝氧粉末,可以高体密度填充于坩埚中,在加热熔融时不致于氧化坩埚之下,制得空隙少的蓝宝石单晶体。
申请公布号
TW200821415
申请公布日期
2008.05.16
申请号
TW096134900
申请日期
2007.09.19
申请人
住友化学股份有限公司
发明人
东纪史;藤原进治
分类号
C30B15/00(2006.01)
主分类号
C30B15/00(2006.01)
代理机构
代理人
林志刚
主权项
地址
日本
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