FERRITE CALCINED BODY, FERRITE SINTERED MAGNET AND MANUFACTURING METHOD THEREOF
To provide a ferrite calcined body and a ferrite sintered magnet which have high Br and less decrease in HcJ, and in which the usage amount of Co and La is more reduced than conventional Ca-La-Co ferrite sintered magnets, and a manufacturing method thereof.SOLUTION: In a ferrite calcined body, the a...
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| creator | TANIOKU YASUAKI |
| description | To provide a ferrite calcined body and a ferrite sintered magnet which have high Br and less decrease in HcJ, and in which the usage amount of Co and La is more reduced than conventional Ca-La-Co ferrite sintered magnets, and a manufacturing method thereof.SOLUTION: In a ferrite calcined body, the atomic ratio of metallic elements of Ca, R, A, Fe, Co and Zn (where, R represents an element which is at least one of rare earth elements and which essentially contains La, and A represents Sr and/or Ba) is represented by general formula: Ca1-x-x'RxAx'Fe2n-y-zCoyZnz where the x, x', y and z, and the n (provided that 2n is a molar ratio and represented as 2n=(Fe+Co+Zn)/(Ca+R+A))satisfy 0.40≤x |
| format | Patent |
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【課題】本開示の実施形態によれば、高いＢｒを有し、ＨｃＪの低下が少なく、従来のＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石よりもＣｏとＬａの使用量を削減したフェライト仮焼体、フェライト焼結磁石及びその製造方法の提供が可能となる。【解決手段】Ｃａ、Ｒ、Ａ、Ｆｅ、Ｃｏ及びＺｎの金属元素（ただし、Ｒは希土類元素の少なくとも一種であってＬａを必須に含む元素、ＡはＳｒおよび／またはＢａ）の原子比を示す一般式：Ｃａ１−ｘ−ｘ'ＲｘＡｘ'Ｆｅ２ｎ−ｙ−ｚＣｏｙＺｎｚにおいて、前記ｘ、ｘ'、ｙ及びｚ、並びにｎ（ただし、２ｎはモル比であって、２ｎ＝（Ｆｅ＋Ｃｏ＋Ｚｎ）／（Ｃａ＋Ｒ＋Ａ）で表される）が、０．４０≦ｘ＜０．５、０＜ｘ'≦０．１０、０．２０＜ｙ＜０．３０、０＜ｚ＜０．０５、ｘ＜１−ｘ−ｘ'、４．５≦ｎ≦５．５、及び２ｎ−ｙ−ｚ≧１０ｘ'＋８．５、を満足するフェライト仮焼体。【選択図】なし]]></description><language>eng ; jpn</language><subject>ARTIFICIAL STONE ; BASIC ELECTRIC ELEMENTS ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; CONCRETE ; ELECTRICITY ; INDUCTANCES ; INORGANIC CHEMISTRY ; LIME, MAGNESIA ; MAGNETS ; METALLURGY ; REFRACTORIES ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; SLAG ; TRANSFORMERS ; TREATMENT OF NATURAL STONE</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210927&DB=EPODOC&CC=JP&NR=2021150362A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210927&DB=EPODOC&CC=JP&NR=2021150362A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TANIOKU YASUAKI</creatorcontrib><title>FERRITE CALCINED BODY, FERRITE SINTERED MAGNET AND MANUFACTURING METHOD THEREOF</title><description><![CDATA[To provide a ferrite calcined body and a ferrite sintered magnet which have high Br and less decrease in HcJ, and in which the usage amount of Co and La is more reduced than conventional Ca-La-Co ferrite sintered magnets, and a manufacturing method thereof.SOLUTION: In a ferrite calcined body, the atomic ratio of metallic elements of Ca, R, A, Fe, Co and Zn (where, R represents an element which is at least one of rare earth elements and which essentially contains La, and A represents Sr and/or Ba) is represented by general formula: Ca1-x-x'RxAx'Fe2n-y-zCoyZnz where the x, x', y and z, and the n (provided that 2n is a molar ratio and represented as 2n=(Fe+Co+Zn)/(Ca+R+A))satisfy 0.40≤x<0.5, 0<x'≤0.10, 0.20<y<0.30, 0<z<0.05, x<1-x-x', 4.5≤n≤5.5, and 2n-y-z≥10x'+8.5.SELECTED DRAWING: None
【課題】本開示の実施形態によれば、高いＢｒを有し、ＨｃＪの低下が少なく、従来のＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石よりもＣｏとＬａの使用量を削減したフェライト仮焼体、フェライト焼結磁石及びその製造方法の提供が可能となる。【解決手段】Ｃａ、Ｒ、Ａ、Ｆｅ、Ｃｏ及びＺｎの金属元素（ただし、Ｒは希土類元素の少なくとも一種であってＬａを必須に含む元素、ＡはＳｒおよび／またはＢａ）の原子比を示す一般式：Ｃａ１−ｘ−ｘ'ＲｘＡｘ'Ｆｅ２ｎ−ｙ−ｚＣｏｙＺｎｚにおいて、前記ｘ、ｘ'、ｙ及びｚ、並びにｎ（ただし、２ｎはモル比であって、２ｎ＝（Ｆｅ＋Ｃｏ＋Ｚｎ）／（Ｃａ＋Ｒ＋Ａ）で表される）が、０．４０≦ｘ＜０．５、０＜ｘ'≦０．１０、０．２０＜ｙ＜０．３０、０＜ｚ＜０．０５、ｘ＜１−ｘ−ｘ'、４．５≦ｎ≦５．５、及び２ｎ−ｙ−ｚ≧１０ｘ'＋８．５、を満足するフェライト仮焼体。【選択図】なし]]></description><subject>ARTIFICIAL STONE</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>CONCRETE</subject><subject>ELECTRICITY</subject><subject>INDUCTANCES</subject><subject>INORGANIC CHEMISTRY</subject><subject>LIME, MAGNESIA</subject><subject>MAGNETS</subject><subject>METALLURGY</subject><subject>REFRACTORIES</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>SLAG</subject><subject>TRANSFORMERS</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPB3cw0K8gxxVXB29HH29HN1UXDyd4nUUYAJB3v6hbgGAYV9Hd39XEMUHP1ATL9QN0fnkNAgTz93BV_XEA9_F4UQD6AyfzceBta0xJziVF4ozc2g5OYa4uyhm1qQH59aXJCYnJqXWhLvFWBkYGRoaGpgbGbkaEyUIgCBoy70</recordid><startdate>20210927</startdate><enddate>20210927</enddate><creator>TANIOKU YASUAKI</creator><scope>EVB</scope></search><sort><creationdate>20210927</creationdate><title>FERRITE CALCINED BODY, FERRITE SINTERED MAGNET AND MANUFACTURING METHOD THEREOF</title><author>TANIOKU YASUAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021150362A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>ARTIFICIAL STONE</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>CONCRETE</topic><topic>ELECTRICITY</topic><topic>INDUCTANCES</topic><topic>INORGANIC CHEMISTRY</topic><topic>LIME, MAGNESIA</topic><topic>MAGNETS</topic><topic>METALLURGY</topic><topic>REFRACTORIES</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>SLAG</topic><topic>TRANSFORMERS</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>TANIOKU YASUAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TANIOKU YASUAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FERRITE CALCINED BODY, FERRITE SINTERED MAGNET AND MANUFACTURING METHOD THEREOF</title><date>2021-09-27</date><risdate>2021</risdate><abstract><![CDATA[To provide a ferrite calcined body and a ferrite sintered magnet which have high Br and less decrease in HcJ, and in which the usage amount of Co and La is more reduced than conventional Ca-La-Co ferrite sintered magnets, and a manufacturing method thereof.SOLUTION: In a ferrite calcined body, the atomic ratio of metallic elements of Ca, R, A, Fe, Co and Zn (where, R represents an element which is at least one of rare earth elements and which essentially contains La, and A represents Sr and/or Ba) is represented by general formula: Ca1-x-x'RxAx'Fe2n-y-zCoyZnz where the x, x', y and z, and the n (provided that 2n is a molar ratio and represented as 2n=(Fe+Co+Zn)/(Ca+R+A))satisfy 0.40≤x<0.5, 0<x'≤0.10, 0.20<y<0.30, 0<z<0.05, x<1-x-x', 4.5≤n≤5.5, and 2n-y-z≥10x'+8.5.SELECTED DRAWING: None
【課題】本開示の実施形態によれば、高いＢｒを有し、ＨｃＪの低下が少なく、従来のＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石よりもＣｏとＬａの使用量を削減したフェライト仮焼体、フェライト焼結磁石及びその製造方法の提供が可能となる。【解決手段】Ｃａ、Ｒ、Ａ、Ｆｅ、Ｃｏ及びＺｎの金属元素（ただし、Ｒは希土類元素の少なくとも一種であってＬａを必須に含む元素、ＡはＳｒおよび／またはＢａ）の原子比を示す一般式：Ｃａ１−ｘ−ｘ'ＲｘＡｘ'Ｆｅ２ｎ−ｙ−ｚＣｏｙＺｎｚにおいて、前記ｘ、ｘ'、ｙ及びｚ、並びにｎ（ただし、２ｎはモル比であって、２ｎ＝（Ｆｅ＋Ｃｏ＋Ｚｎ）／（Ｃａ＋Ｒ＋Ａ）で表される）が、０．４０≦ｘ＜０．５、０＜ｘ'≦０．１０、０．２０＜ｙ＜０．３０、０＜ｚ＜０．０５、ｘ＜１−ｘ−ｘ'、４．５≦ｎ≦５．５、及び２ｎ−ｙ−ｚ≧１０ｘ'＋８．５、を満足するフェライト仮焼体。【選択図】なし]]></abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE ELECTRICITY INDUCTANCES INORGANIC CHEMISTRY LIME, MAGNESIA MAGNETS METALLURGY REFRACTORIES SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SLAG TRANSFORMERS TREATMENT OF NATURAL STONE |
| title | FERRITE CALCINED BODY, FERRITE SINTERED MAGNET AND MANUFACTURING METHOD THEREOF |
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