发明名称 |
Preparation of acicular ferromagnetic metal particles consisting essentially of iron |
摘要 |
Acicular metal particles consisting essentially of iron are prepared by reducing alpha -iron(III) oxide obtained-by dehydration-from acicular iron(III) oxide hydroxide prepared in the presence of phosphate ions and having a shape-stabilizing surface coating.
|
申请公布号 |
US4729785(A) |
申请公布日期 |
1988.03.08 |
申请号 |
US19860856972 |
申请日期 |
1986.04.29 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
SCHWAB, EKKEHARD;STECK, WERNER;RUDOLF, PETER;VAETH, GUENTER;JAKUSCH, HELMUT;KOVACS, JENOE |
分类号 |
H01F1/06;B22F9/22;B22F9/24;G11B5/706;(IPC1-7):C22C1/04 |
主分类号 |
H01F1/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|