Title:
臨界防止被覆層の形成方法
Document Type and Number:
Japanese Patent JP6867567
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a criticality prevention coating material and a criticality prevention coating layer capable of stably coating a surface of a melted core, and a method for forming the same.SOLUTION: A criticality prevention coating material contains a thermal neutron absorber, an alkali metal silicate, and one or more kinds selected from a group consisting of sodium silicofluoride, primary aluminum phosphate and aluminum polyphosphate. A criticality prevention coating material contains a thermal neutron absorber, cement, and a cement quick hardening material. The thermal neutron absorbers are preferably gadolinium compound particles and/or boron compound particles.SELECTED DRAWING: Figure 1
Inventors:
Nishino Hideya
Yutaka Onodera
Yoshihiro Mitani
Hiroshi Ishiwatari
Toshiyuki Fujita
Fumiyo Sasaki
Yamato Hayashi
Yutaka Onodera
Yoshihiro Mitani
Hiroshi Ishiwatari
Toshiyuki Fujita
Fumiyo Sasaki
Yamato Hayashi
Application Number:
JP2017005237A
Publication Date:
April 28, 2021
Filing Date:
January 16, 2017
Export Citation:
Assignee:
Fuji Chemical Co., Ltd.
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
G21F1/00; G21C19/40; G21F1/04; G21F9/30
Domestic Patent References:
| JP1147399A | ||||
| JP201324826A | ||||
| JP2007139605A |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation