发明名称 |
MICROSFERA CALCINADA,PROCESSO PARA SUA FABRICACAO E MATERIAL COMPOSITO |
摘要 |
A calcined microsphere of ultrafine bauxite particles having a mean particle size in the range 0.01 to 0.3 micrometers, said microspher having a particle size less than 30 micrometers and being characterised by a substantially solid form having a pycnometric density substantially falling in the range 3.2 - 3.9 g/cm<3>, a BET surface area substantially falling in the range 0.05 to 0.5 m<2>/g and a crystal grain size less than 4 micrometers, the surface chemistry of the microsphere being modified to enhance the wettability to the microsphere and to improve its ability to bond strongly with matrix materials in use. |
申请公布号 |
BR9006590(A) |
申请公布日期 |
1991.10.01 |
申请号 |
BR19909006590 |
申请日期 |
1990.12.26 |
申请人 |
COMALCO ALUMINIUM LIMITED |
发明人 |
THOMAS KEITH SMITH;RAYMOND WALTER SHAW;CHRISTOPHER JOHN HEATHCOCK;LESLIE CHARLES EDWARDS;MALCOLM JAMES COUPER;KENONG XIA |
分类号 |
B22F1/00;C04B35/111;C04B35/18;C09K8/80;E21B43/267;(IPC1-7):C04B35/10 |
主分类号 |
B22F1/00 |
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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