Title:
CORROSION PREVENTING METHOD OF ZIRCONIUM AND ZIRCONIUM ALLOY
Document Type and Number:
Japanese Patent JP3213782
Kind Code:
B2
Abstract:
PURPOSE: To improve the corrosion resistance of zirconium or a zirconium alloy mainly containing zirconium under the environment high temp. pure water.
CONSTITUTION: A passive coating film of a zirconium-nickel multiple oxide (ZrNiO3) is formed on the surface of a member-having a surface composed of zirconium or the zirconium alloy by dipping the member into a mixed solution of sodium hydroxide, nickel hydroxide and lithium chloride at 90°C and electrolyzing.
Inventors:
Nobuyoshi Hosaka
Yuichi Ishikawa
Hayashi Makoto
Hiroshi Kimoto
Kenichi Suzuki
Hidenori Michishita
Kazumi Anazawa
Yuichi Ishikawa
Hayashi Makoto
Hiroshi Kimoto
Kenichi Suzuki
Hidenori Michishita
Kazumi Anazawa
Application Number:
JP9976594A
Publication Date:
October 02, 2001
Filing Date:
May 13, 1994
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G21C3/06; C23C22/60; C23C22/64; C23F15/00; C25D11/26; (IPC1-7): C25D11/26; C23C22/64; C23F15/00
Domestic Patent References:
| JP5209296A | ||||
| JP6415379A | ||||
| JP55145198A | ||||
| JP4746648B1 |
Attorney, Agent or Firm:
Tatsuyuki Unuma