Title:
PRODUCTION METHOD OF IRON CARBIDE MATERIAL, AND THIN FILM MATERIAL OF IRON CARBIDE
Document Type and Number:
Japanese Patent JP2018177543
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of an iron carbide material having high saturation magnetization, and an iron carbide thin film material having high saturation magnetization.SOLUTION: A production method of an iron carbide material includes: a preparation step of preparing a host material made of amorphous iron carbide containing 11 atom% or higher and 20 atom% or lower of carbon; a coating step of obtaining a coated member by forming a coated film containing chromium in at least a part of a surface of the host material; and a heat treatment step in which the coated member is heat treated in an atmosphere that does not react with chromium or a reduced pressure atmosphere, at a temperature of 150°C or higher and 250°C or lower to diffuse a part of carbon in the host material into the coated film to obtain a crystalline iron carbide material.SELECTED DRAWING: None
Inventors:
MAEDA TORU
SAITO SHIN
OGAWA TOMOYUKI
TOBISE MASAHIRO
SAITO SHIN
OGAWA TOMOYUKI
TOBISE MASAHIRO
Application Number:
JP2017073802A
Publication Date:
November 15, 2018
Filing Date:
April 03, 2017
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
UNIV TOHOKU
UNIV TOHOKU
International Classes:
C01B32/90; C21D6/00; C22C38/00; C23C10/28; H01F1/153
Domestic Patent References:
| JPH02133517A | 1990-05-22 | |||
| JP2005303006A | 2005-10-27 | |||
| JP2003170262A | 2003-06-17 |
Foreign References:
| WO2005083725A1 | 2005-09-09 |
Attorney, Agent or Firm:
Hiroshi Yamano