Title:
窒化ケイ素の成形部品及び該成形部品の製造方法
Document Type and Number:
Japanese Patent JP4724419
Kind Code:
B2
Abstract:
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.
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Inventors:
Olsen, Epsen
Solheim, Arve
Selheim, Hevald
Solheim, Arve
Selheim, Hevald
Application Number:
JP2004528963A
Publication Date:
July 13, 2011
Filing Date:
August 13, 2003
Export Citation:
Assignee:
Kurdin Axiel Scape
International Classes:
C30B15/10; C04B35/591; C04B38/00; C30B11/00; C30B15/00
Domestic Patent References:
| JP59162199A | ||||
| JP2001510434A | ||||
| JP57188497A | ||||
| JP57188408A | ||||
| JP57200269A | ||||
| JP61236604A |
Attorney, Agent or Firm:
Takao Hamano
Teruichi Hirai
Teruichi Hirai