发明名称 |
Process for producing FePt-based sputtering target |
摘要 |
A process for producing an FePt-based sputtering target includes adding metal oxide powder containing unavoidable impurities to FePt-based alloy powder containing Pt in an amount of 40 at % or more and less than 60 at % and one or more kinds of metal elements other than Fe and Pt in an amount of more than 0 at % and 20 at % or less with the balance being Fe and unavoidable impurities and with a total amount of Pt and the one or more kinds of metal elements being 60 at % or less so that the metal oxide powder accounts for 20 vol % or more and 40 vol % or less of a total amount of the FePt-based alloy powder and the metal oxide powder, followed by mixing the FePt-based alloy powder and the metal oxide powder to produce a powder mixture. |
申请公布号 |
US9314846(B2) |
申请公布日期 |
2016.04.19 |
申请号 |
US201414330786 |
申请日期 |
2014.07.14 |
申请人 |
TANAKA KIKINZOKU KOGYO K.K. |
发明人 |
Miyashita Takanobu;Goto Yasuyuki;Yamamoto Takamichi;Kushibiki Ryousuke;Aono Masahiro;Nishiura Masahiro |
分类号 |
B22F3/12;B22F9/08;C23C14/34;C22C1/05;C22C5/04;C22C32/00;G11B5/851;B22F9/04;C22C1/04;C22C1/10;H01J37/34;C23C14/06;C22C38/00;C22C38/16 |
主分类号 |
B22F3/12 |
代理机构 |
Oliff PLC |
代理人 |
Oliff PLC |
主权项 |
1. A process for producing an FePt-based sputtering target, comprising:
adding metal oxide powder containing unavoidable impurities to FePt-based alloy powder containing Pt in an amount of 40 at % or more and less than 60 at % and one or more kinds of metal elements other than Fe and Pt in an amount of more than 0 at % and 20 at % or less with the balance being Fe and unavoidable impurities and with a total amount of Pt and the one or more kinds of metal elements being 60 at % or less so that the metal oxide powder accounts for 20 vol % or more and 40 vol % or less of a total amount of the FePt-based alloy powder and the metal oxide powder, followed by mixing the FePt-based alloy powder and the metal oxide powder to produce a powder mixture; and molding the produced powder mixture while the powder mixture is heated under pressure. |
地址 |
Tokyo JP |