发明授权
- 专利标题： Aluminum oxycarbide composition, production method therefor, and refractory material
- 专利标题（中）： 碳酸氢铝组合物，其制备方法和耐火材料
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申请号： US13600545申请日： 2012-08-31
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公开(公告)号： US08728966B2公开(公告)日： 2014-05-20
- 发明人: Keiichiro Akamine , Joki Yoshitomi
- 申请人： Keiichiro Akamine , Joki Yoshitomi
- 申请人地址： JP Fukuoka
- 专利权人： Krosakiharima Corporation
- 当前专利权人： Krosakiharima Corporation
- 当前专利权人地址： JP Fukuoka
- 代理机构： Fleit Gibbons Gutman Bongini Bianco PL
- 代理商 Marty Fleit; Paul D. Bianco
- 优先权： JP2011-191830 20110902
- 主分类号： C04B35/56
- IPC分类号： C04B35/56 ; C04B35/107
摘要：
It is an object to provide an aluminum oxycarbide composition capable of suppressing oxidation of Al4O4C during use to maintain advantageous effects of Al4O4C for a long time. In an aluminum oxycarbide composition comprising Al4O4C crystals, the Al4O4C crystals have an average diameter of 20 μm or more, based on an assumption that a cross-sectional area of each Al4O4C crystal during observation of the aluminum oxycarbide composition in an arbitrary cross-section thereof is converted into a diameter of a circle having the same area as the cross-sectional area. This aluminum oxycarbide composition can be produced by subjecting a carbon-based raw material and an alumina-based raw material to melting in an arc furnace and then cooling within the arc furnace.