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Process of manufacturing a body inductor espinelo ceramico polycrystalline and magnetically anisotropico and body inductor manufactured by this process espinelo
Process of manufacturing a body inductor espinelo ceramico polycrystalline and magnetically anisotropico and body inductor manufactured by this process espinelo
1,225,228. Ferrites. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Sept., 1969 [7 Sept., 1968], No. 43839/69. Heading C1A. [Also in Division H1] ] A polycrystalline magnetically anisotropic spinel ferrite body is made by mixing a crystallized ferrite having axial or planar crystal anisotropy and defined by the formula with an oxide A"O, shaping the mixture while magnetically orientating the individual crystals by magnetic and/or mechanical .means, And then sintering the shaped body. ASPII/SPand BSPII/SP are each one or more of FeSPII/SP NiSPII/SP MnSPII/SP, CoSPII/SP Zn, Mg, CuSPII/SP and LiSPI/SP + FeSPIII/SP/2; and x is 6 or 8. At least part of the ASPII/SPO may be replaced by one or more compounds convertible to ASPII/SPO on heating, and part of the FeSPIII/SP in the ferrite may be replaced by at least one of Al, CrSPIII/SP and ASPII/SP + MSPIV/SP/2 where MSPIV/SP is TiSPIV/SP and/or SnSPIV/SP. Magnetic orientation may be effected by application of a magnetic field or by incorporating a binder, rolling or extruding into strips or plates, and then burning of the binder before sintering. An example describes the preparation of nickel ferrites (NiFe 2 O 4 ) from PbFe 12 O 19 and NiO.
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机译:1,225,228。铁氧体。飞利浦电子及相关工业有限公司1969年9月4日[1968年9月7日],第43839/69号。标题C1A。 [也在H1分区]通过将具有轴向或平面晶体各向异性并由该式定义的结晶铁氧体与氧化物A“ O混合,使混合物成形,同时通过磁力使各个晶体磁取向,从而制得多晶磁性尖晶石铁氧体体。和/或机械手段,然后烧结成型体A II SP>和B II SP>分别是Fe II SP> Ni < SP> II SP> Mn II SP>,Co II SP> Zn,Mg,Cu II SP>和Li I SP> + Fe III SP> / 2; x为6或8。A II SP> O的至少一部分可以被一种或多种可转化为A II < / SP> O加热,铁素体中的部分Fe III SP>可用Al,Cr III SP>和A II中的至少一种代替。 SP> + M IV SP> / 2,其中M IV SP>是Ti IV SP>和/或Sn IV SP>。通过施加磁场或通过掺入粘合剂,轧制或挤压成条或板来实现烧结,然后烧结粘合剂。一个例子描述了由PbFe 12 O 19和NiO制备镍铁氧体(NiFe 2 O 4)。
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