Jae-Won Lee, Jin-Ah Kim, In-Joon Sohn, Kyyoul Yun, Seonghoon Yi
{"title":"Fe基非晶粉末（Fe, Co）68.7(C, Si， B， P)24.5（Mo, Al）烧结制备非晶环芯的软磁性能","authors":"Jae-Won Lee, Jin-Ah Kim, In-Joon Sohn, Kyyoul Yun, Seonghoon Yi","doi":"10.1007/s13391-025-00549-9","DOIUrl":null,"url":null,"abstract":"<div><p>An Fe-based amorphous alloy (Fe, Co)<sub>68.7</sub>(C, Si, B, P)<sub>24.5</sub>(Mo, Al)<sub>6.8</sub> was prepared as amorphous ribbons (~ 25 μm thick) and amorphous rods (Ф3 mm), which were crushed and sieved to form powders with different shapes and particles smaller than 53 μm: amorphous flake powders made from crushed ribbons and amorphous irregular powders made from crushed rods. Both powders were consolidated via spark plasma sintering into dense ring cores with a relative density exceeding 90%; this high density is attributed to the Newtonian flow within the temperature range of the amorphous powder’s supercooled liquid region. Excellent soft magnetic properties originating from the amorphous nature and high density of the ring cores were confirmed. Additionally, due to electrical isolation between the powder particles, the eddy current loss of the amorphous ring cores made from the SiO<sub>2</sub>-coated amorphous flake powder was significantly reduced to 4.86 W/kg (at Bm = 100 mT, 1 kHz).</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"21 3","pages":"346 - 356"},"PeriodicalIF":2.1000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Soft Magnetic Properties of Amorphous ring Cores Prepared via Spark Plasma Sintering Using Fe-based Amorphous Powders (Fe, Co)68.7(C, Si, B, P)24.5(Mo, Al)6.8\",\"authors\":\"Jae-Won Lee, Jin-Ah Kim, In-Joon Sohn, Kyyoul Yun, Seonghoon Yi\",\"doi\":\"10.1007/s13391-025-00549-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>An Fe-based amorphous alloy (Fe, Co)<sub>68.7</sub>(C, Si, B, P)<sub>24.5</sub>(Mo, Al)<sub>6.8</sub> was prepared as amorphous ribbons (~ 25 μm thick) and amorphous rods (Ф3 mm), which were crushed and sieved to form powders with different shapes and particles smaller than 53 μm: amorphous flake powders made from crushed ribbons and amorphous irregular powders made from crushed rods. Both powders were consolidated via spark plasma sintering into dense ring cores with a relative density exceeding 90%; this high density is attributed to the Newtonian flow within the temperature range of the amorphous powder’s supercooled liquid region. Excellent soft magnetic properties originating from the amorphous nature and high density of the ring cores were confirmed. Additionally, due to electrical isolation between the powder particles, the eddy current loss of the amorphous ring cores made from the SiO<sub>2</sub>-coated amorphous flake powder was significantly reduced to 4.86 W/kg (at Bm = 100 mT, 1 kHz).</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":536,\"journal\":{\"name\":\"Electronic Materials Letters\",\"volume\":\"21 3\",\"pages\":\"346 - 356\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2025-02-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electronic Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13391-025-00549-9\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronic Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s13391-025-00549-9","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Soft Magnetic Properties of Amorphous ring Cores Prepared via Spark Plasma Sintering Using Fe-based Amorphous Powders (Fe, Co)68.7(C, Si, B, P)24.5(Mo, Al)6.8
An Fe-based amorphous alloy (Fe, Co)68.7(C, Si, B, P)24.5(Mo, Al)6.8 was prepared as amorphous ribbons (~ 25 μm thick) and amorphous rods (Ф3 mm), which were crushed and sieved to form powders with different shapes and particles smaller than 53 μm: amorphous flake powders made from crushed ribbons and amorphous irregular powders made from crushed rods. Both powders were consolidated via spark plasma sintering into dense ring cores with a relative density exceeding 90%; this high density is attributed to the Newtonian flow within the temperature range of the amorphous powder’s supercooled liquid region. Excellent soft magnetic properties originating from the amorphous nature and high density of the ring cores were confirmed. Additionally, due to electrical isolation between the powder particles, the eddy current loss of the amorphous ring cores made from the SiO2-coated amorphous flake powder was significantly reduced to 4.86 W/kg (at Bm = 100 mT, 1 kHz).
期刊介绍：
Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.
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