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FERRITE SINTERED MAGNET
To provide a ferrite sintered magnet having a high coercive force.SOLUTION: A ferrite sintered magnet including ferrite particles having a hexagonal crystal structure is provided. This ferrite sintered magnet contains a metal element in an atomic ratio represented by the following formula (1), CaRSrFeCo...(1), in the formula (1), R is at least one element selected from the group consisting of rare earth elements and Bi, R contains at least La, in the formula (1), w, x, z and m satisfy the following formulas (2) to (5), 0.360≤w≤0.420...(2), 0.110≤x≤0.173...(3), 8.51≤z≤9.71...(4), and 0.208≤m≤0.269...(5), and in a cross section parallel to an easy axis of magnetization, 0≤n/N≤0.20 is satisfied, where N is the number of all ferrite particles and n is the number of ferrite particles having lamination faults.SELECTED DRAWING: Figure 1
【課題】保磁力の高いフェライト焼結磁石を提供する。【解決手段】六方晶構造を有するフェライト粒子を含むフェライト焼結磁石が提供される。このフェライト焼結磁石は金属元素を下記式（１）で表される原子比で含み、Ｃａ１−ｗ−ｘＲｗＳｒｘＦｅｚＣｏｍ・・・（１）式（１）中、Ｒは希土類元素及びＢｉからなる群より選ばれる少なくとも１種の元素であり、Ｒは少なくともＬａを含み、式（１）中、ｗ、ｘ、ｚ及びｍは、下記式（２）〜（５）を満たし、０．３６０≦ｗ≦０．４２０・・・（２）０．１１０≦ｘ≦０．１７３・・・（３）８．５１≦ｚ≦９．７１・・・（４）０．２０８≦ｍ≦０．２６９・・・（５）磁化容易軸に平行な断面において、全フェライト粒子の数をＮ、積層欠陥を有するフェライト粒子の数をｎとしたときに、０≦ｎ／Ｎ≦０．２０を満たす。【選択図】図１
FERRITE SINTERED MAGNET
To provide a ferrite sintered magnet having a high coercive force.SOLUTION: A ferrite sintered magnet including ferrite particles having a hexagonal crystal structure is provided. This ferrite sintered magnet contains a metal element in an atomic ratio represented by the following formula (1), CaRSrFeCo...(1), in the formula (1), R is at least one element selected from the group consisting of rare earth elements and Bi, R contains at least La, in the formula (1), w, x, z and m satisfy the following formulas (2) to (5), 0.360≤w≤0.420...(2), 0.110≤x≤0.173...(3), 8.51≤z≤9.71...(4), and 0.208≤m≤0.269...(5), and in a cross section parallel to an easy axis of magnetization, 0≤n/N≤0.20 is satisfied, where N is the number of all ferrite particles and n is the number of ferrite particles having lamination faults.SELECTED DRAWING: Figure 1
【課題】保磁力の高いフェライト焼結磁石を提供する。【解決手段】六方晶構造を有するフェライト粒子を含むフェライト焼結磁石が提供される。このフェライト焼結磁石は金属元素を下記式（１）で表される原子比で含み、Ｃａ１−ｗ−ｘＲｗＳｒｘＦｅｚＣｏｍ・・・（１）式（１）中、Ｒは希土類元素及びＢｉからなる群より選ばれる少なくとも１種の元素であり、Ｒは少なくともＬａを含み、式（１）中、ｗ、ｘ、ｚ及びｍは、下記式（２）〜（５）を満たし、０．３６０≦ｗ≦０．４２０・・・（２）０．１１０≦ｘ≦０．１７３・・・（３）８．５１≦ｚ≦９．７１・・・（４）０．２０８≦ｍ≦０．２６９・・・（５）磁化容易軸に平行な断面において、全フェライト粒子の数をＮ、積層欠陥を有するフェライト粒子の数をｎとしたときに、０≦ｎ／Ｎ≦０．２０を満たす。【選択図】図１
FERRITE SINTERED MAGNET
フェライト焼結磁石
IKEDA MAKI (author) / MORITA HIROYUKI (author) / MURAKAWA KIDO (author) / MUROYA SHOGO (author)
2020-08-27
Patent
Electronic Resource
Japanese
FERRITE SINTERED MAGNET PRODUCING METHOD AND FERRITE SINTERED MAGNET
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