Title:
HEAT TREATMENT VESSEL FOR OXIDE SINGLE CRYSTAL AND STRUCTURE FOR HEAT TREATMENT
Document Type and Number:
Japanese Patent JP2818346
Kind Code:
B2
Abstract:
PURPOSE: To provide, in a container receiving oxide single crystals and heat treating them, a heat treatment container capable of holding an equilibrium condition f steam in the container and further heat treating a large number of oxide single crystals.
CONSTITUTION: A container 8 consists of a body 2 equipped with a space to hold oxide single crystals 7 and a lid 1 mounted on a rim 2a of the body 2. Surface roughness Ra of a contact surface between the lid 1 and the body 2 is ≤3μm (more preferably ≤1μm) and waviness of the surface is ≤30μm (more preferably ≤10μm). A level difference 1a is made inside of the contact surface of the lid 1 and the level difference 1a projects in a space 10.
Inventors:
Ryuichi Ouchi
Imaeda Binotome
Imaeda Binotome
Application Number:
JP1545493A
Publication Date:
October 30, 1998
Filing Date:
February 02, 1993
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
C30B29/30; C30B33/02; C30B35/00; G02B1/02; (IPC1-7): C30B33/02; C30B29/30
Domestic Patent References:
| JP6211600A | ||||
| JP58151399A |
Attorney, Agent or Firm:
Akihide Sugimura (9 outside)
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