Yikun Zhang , Angsai Li , Weixiang Hao , Hai-Feng Li , Lingwei Li
{"title":"磷灰石型钆基致密MGd4Si3O13 (M = Mg, Ca, Sr)陶瓷:一类新兴的亚液氦温度磁性制冷剂","authors":"Yikun Zhang , Angsai Li , Weixiang Hao , Hai-Feng Li , Lingwei Li","doi":"10.1016/j.actamat.2025.121033","DOIUrl":null,"url":null,"abstract":"<div><div>Low-temperature magnetic refrigeration (MR), based on the magnetocaloric (MC) effect of magnetic materials, is recognized as a distinct and powerful cooling technology. We herein introduce a class of promising low-temperature magnetic refrigerants: the apatite-type gadolinium-based dense <em>M</em>Gd<sub>4</sub>Si<sub>3</sub>O<sub>13</sub> (M = Mg, Ca, and Sr) ceramics. These ceramics exhibit giant MC effects and prominent performance in the sub-liquid helium temperature range. The maximum magnetic entropy change values of these ceramics are 59.5 and 32.2 J/kgK under magnetic fields of 0–7 and 0–2 T, respectively. These results surpass those of the commercial magnetic refrigerant gadolinium gallium garnet (GGG, ∼32.8 and 14.6 J/kgK) and are superior to most known benchmarked low-temperature magnetic refrigerants. Furthermore, these apatite-type gadolinium-based ceramics possess relatively high density (6.277∼6.562 g/cm<sup>3</sup>) and exhibit good environmental stability. These characteristics make these apatite-type <em>M</em>Gd<sub>4</sub>Si<sub>3</sub>O<sub>13</sub> ceramics highly suitable for practical sub-liquid helium temperature MR applications.</div></div>","PeriodicalId":238,"journal":{"name":"Acta Materialia","volume":"292 ","pages":"Article 121033"},"PeriodicalIF":8.3000,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Apatite-type gadolinium-based dense MGd4Si3O13 (M = Mg, Ca, and Sr) ceramics: An emerging class of sub-liquid helium temperature magnetic refrigerant\",\"authors\":\"Yikun Zhang , Angsai Li , Weixiang Hao , Hai-Feng Li , Lingwei Li\",\"doi\":\"10.1016/j.actamat.2025.121033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Low-temperature magnetic refrigeration (MR), based on the magnetocaloric (MC) effect of magnetic materials, is recognized as a distinct and powerful cooling technology. We herein introduce a class of promising low-temperature magnetic refrigerants: the apatite-type gadolinium-based dense <em>M</em>Gd<sub>4</sub>Si<sub>3</sub>O<sub>13</sub> (M = Mg, Ca, and Sr) ceramics. These ceramics exhibit giant MC effects and prominent performance in the sub-liquid helium temperature range. The maximum magnetic entropy change values of these ceramics are 59.5 and 32.2 J/kgK under magnetic fields of 0–7 and 0–2 T, respectively. These results surpass those of the commercial magnetic refrigerant gadolinium gallium garnet (GGG, ∼32.8 and 14.6 J/kgK) and are superior to most known benchmarked low-temperature magnetic refrigerants. Furthermore, these apatite-type gadolinium-based ceramics possess relatively high density (6.277∼6.562 g/cm<sup>3</sup>) and exhibit good environmental stability. These characteristics make these apatite-type <em>M</em>Gd<sub>4</sub>Si<sub>3</sub>O<sub>13</sub> ceramics highly suitable for practical sub-liquid helium temperature MR applications.</div></div>\",\"PeriodicalId\":238,\"journal\":{\"name\":\"Acta Materialia\",\"volume\":\"292 \",\"pages\":\"Article 121033\"},\"PeriodicalIF\":8.3000,\"publicationDate\":\"2025-04-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Materialia\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1359645425003234\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Materialia","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359645425003234","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Apatite-type gadolinium-based dense MGd4Si3O13 (M = Mg, Ca, and Sr) ceramics: An emerging class of sub-liquid helium temperature magnetic refrigerant
Low-temperature magnetic refrigeration (MR), based on the magnetocaloric (MC) effect of magnetic materials, is recognized as a distinct and powerful cooling technology. We herein introduce a class of promising low-temperature magnetic refrigerants: the apatite-type gadolinium-based dense MGd4Si3O13 (M = Mg, Ca, and Sr) ceramics. These ceramics exhibit giant MC effects and prominent performance in the sub-liquid helium temperature range. The maximum magnetic entropy change values of these ceramics are 59.5 and 32.2 J/kgK under magnetic fields of 0–7 and 0–2 T, respectively. These results surpass those of the commercial magnetic refrigerant gadolinium gallium garnet (GGG, ∼32.8 and 14.6 J/kgK) and are superior to most known benchmarked low-temperature magnetic refrigerants. Furthermore, these apatite-type gadolinium-based ceramics possess relatively high density (6.277∼6.562 g/cm3) and exhibit good environmental stability. These characteristics make these apatite-type MGd4Si3O13 ceramics highly suitable for practical sub-liquid helium temperature MR applications.
期刊介绍:
Acta Materialia serves as a platform for publishing full-length, original papers and commissioned overviews that contribute to a profound understanding of the correlation between the processing, structure, and properties of inorganic materials. The journal seeks papers with high impact potential or those that significantly propel the field forward. The scope includes the atomic and molecular arrangements, chemical and electronic structures, and microstructure of materials, focusing on their mechanical or functional behavior across all length scales, including nanostructures.