发明名称 |
ALPHA ALUMINA MACRO CRYSTALS IN THE FORM OF PLATELETS AND PROCESS FOR THEIR PRODUCTION |
摘要 |
Macrocrystals of alpha alumina in the form of monocrystalline hexagonal platelets. The invention also relates to a process for the manufacture of these macrocrystals by calcination of alumina, for example transition alumina, and in the presence of a fluorine-containing flux, at a relatively low temperature. The macrocrystals of alpha alumina can be employed as reinforcing materials. |
申请公布号 |
KR950003419(B1) |
申请公布日期 |
1995.04.12 |
申请号 |
KR19900014770 |
申请日期 |
1990.09.18 |
申请人 |
ATOCHEM SA. |
发明人 |
FAURE, ANNICK;BACHELARD, ROLOND |
分类号 |
C01F7/02;C01F7/30;C30B9/00;C30B29/20 |
主分类号 |
C01F7/02 |
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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