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公开(公告)号:US07399523B2
公开(公告)日:2008-07-15
申请号:US10530330
申请日:2003-10-16
IPC分类号: B32B5/16
CPC分类号: B82Y30/00 , C01G49/009 , C01G51/006 , C01G53/006 , C01P2002/32 , C01P2002/52 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C01P2006/42 , G11B5/70642 , H01F1/11 , Y10T428/257 , Y10T428/2998
摘要: Provided is a magnetic material with excellent magnetic properties to be used for recording media, which contains small ratio of superparamagnetic fine particles while maintaining high coercivity. It is spinel ferrimagnetic particles, a composition equation of which when prepared is (CoO)0.5-x(NiO)0.5-y(MO)x+y.n/2(Fe2O3) (M is a bivalent metal except Co and Ni) and a value of n (molar ratio)=Fe/(Co+Ni+Zn) is 2.0
摘要翻译: 提供一种具有优良磁性能的磁性材料,用于记录介质,其含有较小比例的超顺磁性微粒,同时保持高矫顽力。 它是尖晶石亚铁磁性颗粒,其组成等式在制备时为(CoO)0.5-x(NiO)0.5-y(MO)x + y < (Fe 2 N 2 O 3)(M是除Co和Ni之外的二价金属),n(摩尔比)= Fe / (Co + Ni + Zn)为2.0
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公开(公告)号:US20060292403A1
公开(公告)日:2006-12-28
申请号:US10530330
申请日:2003-10-16
申请人: Hiroshi Yamamoto , Natsuki Wakamura
发明人: Hiroshi Yamamoto , Natsuki Wakamura
CPC分类号: B82Y30/00 , C01G49/009 , C01G51/006 , C01G53/006 , C01P2002/32 , C01P2002/52 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C01P2006/42 , G11B5/70642 , H01F1/11 , Y10T428/257 , Y10T428/2998
摘要: Provided is a magnetic material with excellent magnetic properties to be used for recording media, which contains small ratio of superparamagnetic fine particles while maintaining high coercivity. It is spinel ferrimagnetic particles, a composition equation of which when prepared is (CoO)0.5-x(NiO)0.5-y(MO)x+y.n/2(Fe2O3) (M is a bivalent metal except Co and Ni) and a value of n (molar ratio)=Fe/(Co+Ni+Zn) is 2.0
摘要翻译: 提供一种具有优良磁性能的磁性材料,用于记录介质,其含有较小比例的超顺磁性微粒,同时保持高矫顽力。 它是尖晶石亚铁磁性颗粒,其组成等式在制备时为(CoO)0.5-x(NiO)0.5-y(MO)x + y < (Fe 2 N 2 O 3)(M是除Co和Ni之外的二价金属),n(摩尔比)= Fe / (Co + Ni + Zn)为2.0
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