发明名称 |
POROUS MAGNESIA SINTERED BODY AND PRODUCTION THEREOF |
摘要 |
PURPOSE:To uniformize the size and distribution of closed pores and to enhance strength by heating and sintering a molded body of a mixture contg. prescribed amts. of fine powdery magnesium of a regulated particle diameter, org. beads of a regulated diameter and an org. binder under prescribed conditions. CONSTITUTION:Fine powdery magnesium of 1-20mum average particle diameter is mixed with 1-20vol.% org. beads of 3-50mum diameter such as styrene polymer beads and an org. binder such as PVA. A molded body of the resulting mixture is heated to 350 deg.C at <=50 deg.C/hr heating rate in the case of 1-10vol.% org. beads or at <=20 deg.C/hr heating rate in the case of 10-20vol.% org. beads. It is further heated to the sintering temp. at <=200 deg.C/hr heating rate and sintered at 1,550-1,700 deg.C to obtain a porous magnesia sintered body having closed pores of 1-50mum pore diameter. |
申请公布号 |
JPH04338178(A) |
申请公布日期 |
1992.11.25 |
申请号 |
JP19910135258 |
申请日期 |
1991.05.13 |
申请人 |
MITSUBISHI MATERIALS CORP |
发明人 |
TAKAYAMA KOICHI;SASAKI FUMIO;SASAKI HIROSHI |
分类号 |
C04B35/043;C04B35/04;C04B38/06 |
主分类号 |
C04B35/043 |
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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