发明名称 |
MOULD PARTS OF SILICON NITRIDE AND METHOD FOR PRODUCING SUCH MOULD PARTS |
摘要 |
The present invention relates to silicon nitride mould parts, particularly crucibles for use in connection with directional solidification and pulling of silicon single crystals. The mould parts consist of Si3N4 having a total open porosity between 40 and 60% by volume and where more than 50% of the pores in the surface of the mould parts have a size which is larger than the means size of the Si3N4 particles. The invention further relates to a method for producing the silicon nitride mould parts. |
申请公布号 |
WO2004016835(A1) |
申请公布日期 |
2004.02.26 |
申请号 |
WO2003NO00274 |
申请日期 |
2003.08.13 |
申请人 |
CRUSIN AS;OLSEN, ESPEN;SOLHEIM, ARVE;SOERHEIM, HAAVARD |
发明人 |
OLSEN, ESPEN;SOLHEIM, ARVE;SOERHEIM, HAAVARD |
分类号 |
C04B35/591;C04B38/00;C30B11/00;C30B15/00;C30B15/10 |
主分类号 |
C04B35/591 |
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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