희토류 소결 자석, 희토류 소결 자석의 제조 방법, 회전자 및 회전기
희토류 소결 자석(1)은, 적어도 Nd를 희토류 원소 R로서 함유하는 R2Fe14B 결정 구조를 갖는 복수의 주상(2)과, 주상(2) 사이에 형성된 입계상(3)을 구비한다. 입계상(3)은, 결정성의 NdO상에 Sm이 치환되어 Sm이 농화된 Sm 농화부(4)와, Sm 농화부(4)의 외곽의 적어도 일부에 중희토류 원소 RH가 농화된 중희토류 원소 RH 농화부(5)를 갖는 입계상(3)을 갖는다. 이에 의해, 자기 특성의 저하를 억제하면서, 중희토류 원소 RH를 토류 소결 자석(1)의 보다 내부까지 확산시킬 수 있다. A rare eart...
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creator | IWASAKI AKITO WATARAI AKIRA YOSHIOKA YUKINA TAMURA YOSHIO |
description | 희토류 소결 자석(1)은, 적어도 Nd를 희토류 원소 R로서 함유하는 R2Fe14B 결정 구조를 갖는 복수의 주상(2)과, 주상(2) 사이에 형성된 입계상(3)을 구비한다. 입계상(3)은, 결정성의 NdO상에 Sm이 치환되어 Sm이 농화된 Sm 농화부(4)와, Sm 농화부(4)의 외곽의 적어도 일부에 중희토류 원소 RH가 농화된 중희토류 원소 RH 농화부(5)를 갖는 입계상(3)을 갖는다. 이에 의해, 자기 특성의 저하를 억제하면서, 중희토류 원소 RH를 토류 소결 자석(1)의 보다 내부까지 확산시킬 수 있다.
A rare earth sintered magnet includes a plurality of regions of a main phase each having an R2Fe14B crystal structure containing at least Nd as a rare earth element R and a grain boundary phase formed among the plurality of regions of the main phase. The grain boundary phase has Sm enriched portions in which Sm is enriched by Sm substitution in a crystalline NdO phase and heavy rare earth element RH enriched portions in which a heavy rare earth element RH is enriched at least on part of peripheries of the Sm enriched portions. This allows the heavy rare earth element RH to diffuse deeper into the rare earth sintered magnet while suppressing the deterioration of the magnetic properties. |
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fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_KR20230068422A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>KR20230068422A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_KR20230068422A3</originalsourceid><addsrcrecordid>eNrjZIh6O3fN27YFr5fOUHjT1vNq0waFN_MmvGmZq6OAQ-LNXKDAgjlvFm5QeL1h5etNU4EqZ_W8WdAClAaK9EN5r3Zs4GFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8d5BRgZGxgYGZhYmRkaOxsSpAgCv1FNL</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>희토류 소결 자석, 희토류 소결 자석의 제조 방법, 회전자 및 회전기</title><source>esp@cenet</source><creator>IWASAKI AKITO ; WATARAI AKIRA ; YOSHIOKA YUKINA ; TAMURA YOSHIO</creator><creatorcontrib>IWASAKI AKITO ; WATARAI AKIRA ; YOSHIOKA YUKINA ; TAMURA YOSHIO</creatorcontrib><description>희토류 소결 자석(1)은, 적어도 Nd를 희토류 원소 R로서 함유하는 R2Fe14B 결정 구조를 갖는 복수의 주상(2)과, 주상(2) 사이에 형성된 입계상(3)을 구비한다. 입계상(3)은, 결정성의 NdO상에 Sm이 치환되어 Sm이 농화된 Sm 농화부(4)와, Sm 농화부(4)의 외곽의 적어도 일부에 중희토류 원소 RH가 농화된 중희토류 원소 RH 농화부(5)를 갖는 입계상(3)을 갖는다. 이에 의해, 자기 특성의 저하를 억제하면서, 중희토류 원소 RH를 토류 소결 자석(1)의 보다 내부까지 확산시킬 수 있다.
A rare earth sintered magnet includes a plurality of regions of a main phase each having an R2Fe14B crystal structure containing at least Nd as a rare earth element R and a grain boundary phase formed among the plurality of regions of the main phase. The grain boundary phase has Sm enriched portions in which Sm is enriched by Sm substitution in a crystalline NdO phase and heavy rare earth element RH enriched portions in which a heavy rare earth element RH is enriched at least on part of peripheries of the Sm enriched portions. This allows the heavy rare earth element RH to diffuse deeper into the rare earth sintered magnet while suppressing the deterioration of the magnetic properties.</description><language>kor</language><subject>ALLOYS ; BASIC ELECTRIC ELEMENTS ; CASTING ; CHEMISTRY ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; GENERATION ; INDUCTANCES ; MAGNETS ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; TRANSFORMERS ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WORKING METALLIC POWDER</subject><creationdate>2023</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=20230517&DB=EPODOC&CC=KR&NR=20230068422A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230517&DB=EPODOC&CC=KR&NR=20230068422A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IWASAKI AKITO</creatorcontrib><creatorcontrib>WATARAI AKIRA</creatorcontrib><creatorcontrib>YOSHIOKA YUKINA</creatorcontrib><creatorcontrib>TAMURA YOSHIO</creatorcontrib><title>희토류 소결 자석, 희토류 소결 자석의 제조 방법, 회전자 및 회전기</title><description>희토류 소결 자석(1)은, 적어도 Nd를 희토류 원소 R로서 함유하는 R2Fe14B 결정 구조를 갖는 복수의 주상(2)과, 주상(2) 사이에 형성된 입계상(3)을 구비한다. 입계상(3)은, 결정성의 NdO상에 Sm이 치환되어 Sm이 농화된 Sm 농화부(4)와, Sm 농화부(4)의 외곽의 적어도 일부에 중희토류 원소 RH가 농화된 중희토류 원소 RH 농화부(5)를 갖는 입계상(3)을 갖는다. 이에 의해, 자기 특성의 저하를 억제하면서, 중희토류 원소 RH를 토류 소결 자석(1)의 보다 내부까지 확산시킬 수 있다.
A rare earth sintered magnet includes a plurality of regions of a main phase each having an R2Fe14B crystal structure containing at least Nd as a rare earth element R and a grain boundary phase formed among the plurality of regions of the main phase. The grain boundary phase has Sm enriched portions in which Sm is enriched by Sm substitution in a crystalline NdO phase and heavy rare earth element RH enriched portions in which a heavy rare earth element RH is enriched at least on part of peripheries of the Sm enriched portions. This allows the heavy rare earth element RH to diffuse deeper into the rare earth sintered magnet while suppressing the deterioration of the magnetic properties.</description><subject>ALLOYS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CASTING</subject><subject>CHEMISTRY</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERATION</subject><subject>INDUCTANCES</subject><subject>MAGNETS</subject><subject>MAKING METALLIC POWDER</subject><subject>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>TRANSFORMERS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WORKING METALLIC POWDER</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIh6O3fN27YFr5fOUHjT1vNq0waFN_MmvGmZq6OAQ-LNXKDAgjlvFm5QeL1h5etNU4EqZ_W8WdAClAaK9EN5r3Zs4GFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8d5BRgZGxgYGZhYmRkaOxsSpAgCv1FNL</recordid><startdate>20230517</startdate><enddate>20230517</enddate><creator>IWASAKI AKITO</creator><creator>WATARAI AKIRA</creator><creator>YOSHIOKA YUKINA</creator><creator>TAMURA YOSHIO</creator><scope>EVB</scope></search><sort><creationdate>20230517</creationdate><title>희토류 소결 자석, 희토류 소결 자석의 제조 방법, 회전자 및 회전기</title><author>IWASAKI AKITO ; WATARAI AKIRA ; YOSHIOKA YUKINA ; TAMURA YOSHIO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20230068422A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>kor</language><creationdate>2023</creationdate><topic>ALLOYS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CASTING</topic><topic>CHEMISTRY</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERATION</topic><topic>INDUCTANCES</topic><topic>MAGNETS</topic><topic>MAKING METALLIC POWDER</topic><topic>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>TRANSFORMERS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WORKING METALLIC POWDER</topic><toplevel>online_resources</toplevel><creatorcontrib>IWASAKI AKITO</creatorcontrib><creatorcontrib>WATARAI AKIRA</creatorcontrib><creatorcontrib>YOSHIOKA YUKINA</creatorcontrib><creatorcontrib>TAMURA YOSHIO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IWASAKI AKITO</au><au>WATARAI AKIRA</au><au>YOSHIOKA YUKINA</au><au>TAMURA YOSHIO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>희토류 소결 자석, 희토류 소결 자석의 제조 방법, 회전자 및 회전기</title><date>2023-05-17</date><risdate>2023</risdate><abstract>희토류 소결 자석(1)은, 적어도 Nd를 희토류 원소 R로서 함유하는 R2Fe14B 결정 구조를 갖는 복수의 주상(2)과, 주상(2) 사이에 형성된 입계상(3)을 구비한다. 입계상(3)은, 결정성의 NdO상에 Sm이 치환되어 Sm이 농화된 Sm 농화부(4)와, Sm 농화부(4)의 외곽의 적어도 일부에 중희토류 원소 RH가 농화된 중희토류 원소 RH 농화부(5)를 갖는 입계상(3)을 갖는다. 이에 의해, 자기 특성의 저하를 억제하면서, 중희토류 원소 RH를 토류 소결 자석(1)의 보다 내부까지 확산시킬 수 있다.
A rare earth sintered magnet includes a plurality of regions of a main phase each having an R2Fe14B crystal structure containing at least Nd as a rare earth element R and a grain boundary phase formed among the plurality of regions of the main phase. The grain boundary phase has Sm enriched portions in which Sm is enriched by Sm substitution in a crystalline NdO phase and heavy rare earth element RH enriched portions in which a heavy rare earth element RH is enriched at least on part of peripheries of the Sm enriched portions. This allows the heavy rare earth element RH to diffuse deeper into the rare earth sintered magnet while suppressing the deterioration of the magnetic properties.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERATION INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER |
title | 희토류 소결 자석, 희토류 소결 자석의 제조 방법, 회전자 및 회전기 |
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