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A platform for research: civil engineering, architecture and urbanism
PRELIMINARILY BAKED FERRITE MATERIAL, AND METHOD FOR MANUFACTURING FERRITE SINTERED MAGNET
To provide a preliminarily baked ferrite material which allows a ferrite sintered magnet having high magnet characteristics to be gained, and a method for manufacturing a ferrite sintered magnet by use of such a preliminarily baked ferrite material.SOLUTION: A preliminarily baked ferrite material comprises: a ferrite phase having an M-type magnetoplumbite structure of hexagonal crystal and containing metal elements of Ca, R, A, Fe and Co (R represents at least one kind of rare earth elements, inevitably including La, and A is Sr and/or Ba); and a spinel ferrite phase containing Co. The preliminarily baked ferrite material includes the ferrite phase of no less than 70 mass% and less than 100 mass%, and the spinel ferrite phase of over 0 mass% and no more than 30 mass%.SELECTED DRAWING: None
【課題】高い磁石特性を有するフェライト焼結磁石を得ることが可能なフェライト仮焼体およびフェライト仮焼体を用いたフェライト焼結磁石の製造方法を提供する。【解決手段】 Ｃａ、Ｒ、Ａ、Ｆｅ及びＣｏの金属元素（Ｒは希土類元素の少なくとも１種であってＬａを必須に含む元素、ＡはＳｒ及び／又はＢａ）を含む六方晶のＭ型マグネトプランバイト構造を有するフェライト相と、Ｃｏを含むスピネルフェライト相と、を有し、前記フェライト相を７０質量％以上１００質量％未満、前記スピネルフェライト相を０質量％超３０質量％以下含有することを特徴とするフェライト仮焼体。【選択図】なし
PRELIMINARILY BAKED FERRITE MATERIAL, AND METHOD FOR MANUFACTURING FERRITE SINTERED MAGNET
To provide a preliminarily baked ferrite material which allows a ferrite sintered magnet having high magnet characteristics to be gained, and a method for manufacturing a ferrite sintered magnet by use of such a preliminarily baked ferrite material.SOLUTION: A preliminarily baked ferrite material comprises: a ferrite phase having an M-type magnetoplumbite structure of hexagonal crystal and containing metal elements of Ca, R, A, Fe and Co (R represents at least one kind of rare earth elements, inevitably including La, and A is Sr and/or Ba); and a spinel ferrite phase containing Co. The preliminarily baked ferrite material includes the ferrite phase of no less than 70 mass% and less than 100 mass%, and the spinel ferrite phase of over 0 mass% and no more than 30 mass%.SELECTED DRAWING: None
【課題】高い磁石特性を有するフェライト焼結磁石を得ることが可能なフェライト仮焼体およびフェライト仮焼体を用いたフェライト焼結磁石の製造方法を提供する。【解決手段】 Ｃａ、Ｒ、Ａ、Ｆｅ及びＣｏの金属元素（Ｒは希土類元素の少なくとも１種であってＬａを必須に含む元素、ＡはＳｒ及び／又はＢａ）を含む六方晶のＭ型マグネトプランバイト構造を有するフェライト相と、Ｃｏを含むスピネルフェライト相と、を有し、前記フェライト相を７０質量％以上１００質量％未満、前記スピネルフェライト相を０質量％超３０質量％以下含有することを特徴とするフェライト仮焼体。【選択図】なし
PRELIMINARILY BAKED FERRITE MATERIAL, AND METHOD FOR MANUFACTURING FERRITE SINTERED MAGNET
フェライト仮焼体およびフェライト焼結磁石の製造方法
OYA ASAMI (author) / KOBAYASHI YOSHINORI (author) / TANIOKU YASUAKI (author)
2022-10-07
Patent
Electronic Resource
Japanese
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