EP 0121046 B1 19900418 - AMORPHOUS ALLOY FOR MAGNETIC HEAD AND MAGNETIC HEAD WITH AN AMORPHOUS ALLOY
Title (en)
AMORPHOUS ALLOY FOR MAGNETIC HEAD AND MAGNETIC HEAD WITH AN AMORPHOUS ALLOY
Publication
Application
Priority
- JP 5376983 A 19830331
- JP 13660883 A 19830726
Abstract (en)
[origin: EP0121046A2] An amorphous alloy for a magnetic head has a composition which may be represented as Co100-T-X-Y-ZNiTHfXBYSiZ or Co100-T min -X-Y-ZReT min HfXBYSiZ, where T, T min , X, Y and Z satisfy the conditions of 0.75 </=T</=14, 0.2</=T min </=1.5, 6</=X</=15, 3</=Y</=8 and 0</=Z</=0.01. Such an amorphous alloy has a high crystallization temperature, said temperature being higher than 500 DEG C, and does not lower the effective magnetic permeability, even if gradual cooling is performed after heat treatment. A magnetic head having a core consisting of such an amorphous alloy is not deteriorated in its magnetic properties, even if the head is made by glass bonding.
IPC 1-7
IPC 8 full level
C22C 45/04 (2006.01); H01F 1/153 (2006.01)
CPC (source: EP)
C22C 45/04 (2013.01); H01F 1/15316 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0121046 A2 19841010; EP 0121046 A3 19861126; EP 0121046 B1 19900418; DE 3482012 D1 19900523
DOCDB simple family (application)
EP 84100955 A 19840131; DE 3482012 T 19840131