Title:
合金および磁気冷凍材料粒子の製造方法
Document Type and Number:
Japanese Patent JP4282707
Kind Code:
B2
Abstract:
An alloy is used for production of magnetic refrigeration material particles. The alloy contains La in a range of 4 to 15 atomic %, Fe in a range of 60 to 93 atomic %, Si in a range of 3.5 to 23.5 atomic % and at lease one element M selected from B and Ti in a range of 0.5 to 1.5 atomic %. The alloy includes a main phase containing Fe as a main component element and Si, and a subphase containing La as a main component element and Si. The main phase has a bcc crystal structure and an average grain diameter of 20 μm or less.
Inventors:
Akiko Saito
Tadahiko Kobayashi
Hideyuki Tsuji
Tadahiko Kobayashi
Hideyuki Tsuji
Application Number:
JP2006268339A
Publication Date:
June 24, 2009
Filing Date:
September 29, 2006
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
C22C38/00; B22F1/00; B22F9/10; H01F1/00
Domestic Patent References:
| JP2004099928A | ||||
| JP2005015911A | ||||
| JP2005226124A | ||||
| JP2006265631A |
Other References:
小岩井他,回転電極法により球状化したLa(FexSi1-x)13巨大磁気熱量化合物の磁気的性質,日本金属学会講演概要,日本,2006年 9月16日,2006年秋期(第139回)大会,第406頁
Attorney, Agent or Firm:
Saichi Suyama
Yukio Kawahara
Satoshi Yamashita
Hideaki Suyama
Yukio Kawahara
Satoshi Yamashita
Hideaki Suyama