Title:
METHOD FOR FITTING CARBONACEOUS CRUCIBLE INTO BOWL AND FABRICATED APPARATUS FOR METALLURGY USING THE METHOD
Document Type and Number:
Japanese Patent JP2002226292
Kind Code:
A
Abstract:
To provide a method for fitting a carbonaceous crucible into a carbonaceous bowl by which life span of the crucible is extended by protecting it from chemical corrosion and mechanical stress in a process wherein a silicon single crystal is manufactured by a pulling up method using a metallurgical apparatus including the carbonaceous bowl in which the crucible for melting silicon is fitted, and the fabricated metallugical apparatus using the above method.
Prior to storing the crucible in the bowl, a consumable buffer layer which essentially comprises a non-rigid carbon fiber fabric is applied to at least a part of the inner surface of the bowl for protecting the bowl from physical or chemical interaction with the crucible.
Inventors:
THEBAULT JACQUES
GEORGES JEAN-MICHEL
COUPE DOMINIQUE
GEORGES JEAN-MICHEL
COUPE DOMINIQUE
Application Number:
JP2001394238A
Publication Date:
August 14, 2002
Filing Date:
December 26, 2001
Export Citation:
Assignee:
SNECMA MOTEURS
International Classes:
C30B29/06; C30B15/10; F27B14/10; F27D1/00; (IPC1-7): C30B29/06; C30B15/10; F27B14/10
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)
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