Title:
COLD CRUCIBLE FOR MOLTEN SALT AND METHOD OF MELTING
Document Type and Number:
Japanese Patent JP3808257
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cold crucible having a superior corrosion resistance to molten salt containing a chloride as its major constituent and corrosive gas and to provide a method for melting and holding the molten salt using the same.
SOLUTION: A spray coated film layer 7 of oxide ceramics comprising ZrO2 by 20 to 80 mass %, the balance of Al2O3, SiO2 or TiO2 or these mixtures and having a thickness of 0.2 to 0.4 mm is formed on the inner surface of a cold crucible 1 including a furnace wall part 3. A glass coating layer 8 with a thickness of 0.05 to 0.4 mm may also be formed on the spray coated film layer. In the case that an item to be treated is molten and processed in the molten salt, it is processed under a state in which a solid phase of molten material is formed between the inner surface of the crucible and the molten salt.
Inventors:
Naoji Yoshida
Tsutomu Tanaka
Tsutomu Tanaka
Application Number:
JP31211799A
Publication Date:
August 09, 2006
Filing Date:
November 02, 1999
Export Citation:
Assignee:
Nuclear Fuel Cycle Development Organization
International Classes:
F27B14/10; G21F9/30; F27D1/00; G21F9/36; H05B6/32; (IPC1-7): F27B14/10; F27D1/00; G21F9/30; G21F9/36; H05B6/32
Attorney, Agent or Firm:
Terutada Hogami