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Dry-pressed permanent magnetic ferrite, preparation method thereof, magnetic device and application of magnetic device
The invention provides a dry-pressed permanent magnetic ferrite, a preparation method thereof, a magnetic device and application thereof. The dry-pressed permanent magnetic ferrite is prepared from the following raw materials: a ferrite pre-sintering material, a growth inhibitor, a heat-conducting medium and a lattice stabilizer. The raw materials of the dry-pressed permanent magnetic ferrite provided by the invention comprise the growth inhibitor, and the growth inhibitor can inhibit abnormal growth in the preparation process of the dry-pressed permanent magnetic ferrite, so that the dry-pressed permanent magnetic ferrite has a uniform structure; in addition, the raw materials of the dry-pressing permanent magnetic ferrite further comprise a heat-conducting medium, and the heat-conducting medium can increase the internal stress of the dry-pressing permanent magnetic ferrite caused by uneven cold and heat inside and outside under the cold and hot impact. The raw material of the dry-pressed permanent magnetic ferrite also comprises a lattice stabilizer, and the lattice stabilizer can reduce the risk that the internal crystal structure is damaged due to expansion or contraction of the dry-pressed permanent magnetic ferrite, so that the magnetic performance is influenced. The dry-pressed permanent magnetic ferrite not only has excellent magnetic performance, but also has relatively strong cold and hot impact resistance.
本发明提供了一种干压永磁铁氧体及其制备方法、磁性器件及其应用，所述干压永磁铁氧体的原料包括：铁氧体预烧料、生长抑制剂、导热介质与晶格稳定剂。本发明提供的干压永磁铁氧体的原料包括生长抑制剂，生长抑制剂能够抑制干压永磁铁氧体制备过程中发生的异常长大，使干压永磁铁氧体具有均匀的结构；另外，干压永磁铁氧体的原料还包括导热介质，导热介质可以增加干压永磁铁氧体应对冷热冲击下由于内部与外部冷热不均而出现的内应力；干压永磁铁氧体的原料还包括晶格稳定剂，晶格稳定剂可以使降低因干压永磁铁氧体的膨胀或收缩而导致的内部晶体结构破坏，从而影响磁性能的风险。所述干压永磁铁氧体不但具有优异的磁性能，还具有较强的抗冷热冲击性能。
Dry-pressed permanent magnetic ferrite, preparation method thereof, magnetic device and application of magnetic device
The invention provides a dry-pressed permanent magnetic ferrite, a preparation method thereof, a magnetic device and application thereof. The dry-pressed permanent magnetic ferrite is prepared from the following raw materials: a ferrite pre-sintering material, a growth inhibitor, a heat-conducting medium and a lattice stabilizer. The raw materials of the dry-pressed permanent magnetic ferrite provided by the invention comprise the growth inhibitor, and the growth inhibitor can inhibit abnormal growth in the preparation process of the dry-pressed permanent magnetic ferrite, so that the dry-pressed permanent magnetic ferrite has a uniform structure; in addition, the raw materials of the dry-pressing permanent magnetic ferrite further comprise a heat-conducting medium, and the heat-conducting medium can increase the internal stress of the dry-pressing permanent magnetic ferrite caused by uneven cold and heat inside and outside under the cold and hot impact. The raw material of the dry-pressed permanent magnetic ferrite also comprises a lattice stabilizer, and the lattice stabilizer can reduce the risk that the internal crystal structure is damaged due to expansion or contraction of the dry-pressed permanent magnetic ferrite, so that the magnetic performance is influenced. The dry-pressed permanent magnetic ferrite not only has excellent magnetic performance, but also has relatively strong cold and hot impact resistance.
本发明提供了一种干压永磁铁氧体及其制备方法、磁性器件及其应用，所述干压永磁铁氧体的原料包括：铁氧体预烧料、生长抑制剂、导热介质与晶格稳定剂。本发明提供的干压永磁铁氧体的原料包括生长抑制剂，生长抑制剂能够抑制干压永磁铁氧体制备过程中发生的异常长大，使干压永磁铁氧体具有均匀的结构；另外，干压永磁铁氧体的原料还包括导热介质，导热介质可以增加干压永磁铁氧体应对冷热冲击下由于内部与外部冷热不均而出现的内应力；干压永磁铁氧体的原料还包括晶格稳定剂，晶格稳定剂可以使降低因干压永磁铁氧体的膨胀或收缩而导致的内部晶体结构破坏，从而影响磁性能的风险。所述干压永磁铁氧体不但具有优异的磁性能，还具有较强的抗冷热冲击性能。
Dry-pressed permanent magnetic ferrite, preparation method thereof, magnetic device and application of magnetic device
一种干压永磁铁氧体及其制备方法、磁性器件及其应用
WANG SHENG (author) / LI YUPING (author) / YANG WUGUO (author) / JIANG SHAOHUI (author) / SHENTU JIN'ANG (author)
2024-10-11
Patent
Electronic Resource
Chinese
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