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SOFT MAGNETIC METALLIC GLASS ALLOY

Foreign code F040000785
File No. (E051P30)
Posted date Feb 22, 2005
Country WIPO
International application number 2003JP002257
International publication number WO 2003/074749
Date of international filing Feb 27, 2003
Date of international publication Sep 12, 2003
Priority data
  • P2002-055291 (Mar 1, 2002) JP
Title SOFT MAGNETIC METALLIC GLASS ALLOY
Abstract A soft magnetic Fe-B-Si metallic glass alloy of high glass forming capability characterized by being represented by the following composition formula and exhibiting a supercooled liquid temperature gap (DeltaT&khgr;) of 40 K or higher, a reduced vitrification temperature (Tg/Tm) of 0.56 or higher and a saturation magnetization of 1.4 T or higher. (Fe1-a-bBaSib)100-&khgr;M&khgr; wherein each of a and b represents an atomic ratio; 0.1 <= a <= 0.17; 0.06 <= b <= 0.15; 0.18 <= a+b <= 0.3; M represents at least one element selected from among Zr, Nb, Ta, Hf, Mo, Ti, V, Cr, Pd and W; and 1 atomic% <= &khgr; <= 10 atomic%.
Scope of claims (In Japanese)
【請求項1】【請求の範囲】1.下記の組成式で表され、過冷却液体の温度間隔ATxが40K以上で、換算ガラス化温度Tg/Tmが0.56以上であり、1.4T以上の飽和磁化を有することを特徴とするガラス形成能が高い軟磁性Fe-B-Si系金属ガラス合金。(Fe1-a-b Ba Sib)100-XMXただし、a、bは原子比であり、0.1≦a≦0.17、0.06≦b≦0.15、0.18≦a+b≦0.3、MはZr、Nb、Ta、Hf、Mo、Ti、V、Cr、Pd、Wのうちの一種または二種以上の元素であり、1原子%≦x≦10原子%である。

【請求項2】2.P、C、Ga、Geのうちから選択される一種または二種以上の元素を3原子%以下含むことを特徴する請求の範囲第1項に記載の軟磁性Fe-B-Si系金属ガラス合金。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • Japan Science And Technology Corporation
  • Inventor
  • Inoue, Akihisa
IPC(International Patent Classification)
Reference ( R and D project ) ERATO INOUE Superliquid Class AREA
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