材料导报
材料導報
재료도보
MATERIALS REVIEW
2011年
15期
15-20
,共6页
李军锁%董中奇%尹素华%涂赣峰
李軍鎖%董中奇%尹素華%塗贛峰
리군쇄%동중기%윤소화%도공봉
LaFe基化合物%稀土%室温磁制冷材料%磁热效应%等温磁熵变
LaFe基化閤物%稀土%室溫磁製冷材料%磁熱效應%等溫磁熵變
LaFe기화합물%희토%실온자제랭재료%자열효응%등온자적변
LaFe-based compounds%rare earth%magnetic refrigerating material%magnetocaloric effect%isothermal magnetic entropy change
介绍了LaFe基室温磁制冷材料在制备和磁热效应方面的研究进展.具有NaZn13型结构的LaFe基化合物中含有高的Fe含量,是良好的软磁材料.LaFe基化合物的居里温度可以通过Co取代Fe或添加非金属元素H、C、B等来提高；应用甩带和其他稀土元素取代La可以缩短制备NaZn13的退火时间.通过调整LaFe基化合物的元素配比可能会制备出具有巨磁热效应的室温磁制冷材料.
介紹瞭LaFe基室溫磁製冷材料在製備和磁熱效應方麵的研究進展.具有NaZn13型結構的LaFe基化閤物中含有高的Fe含量,是良好的軟磁材料.LaFe基化閤物的居裏溫度可以通過Co取代Fe或添加非金屬元素H、C、B等來提高；應用甩帶和其他稀土元素取代La可以縮短製備NaZn13的退火時間.通過調整LaFe基化閤物的元素配比可能會製備齣具有巨磁熱效應的室溫磁製冷材料.
개소료LaFe기실온자제랭재료재제비화자열효응방면적연구진전.구유NaZn13형결구적LaFe기화합물중함유고적Fe함량,시량호적연자재료.LaFe기화합물적거리온도가이통과Co취대Fe혹첨가비금속원소H、C、B등래제고；응용솔대화기타희토원소취대La가이축단제비NaZn13적퇴화시간.통과조정LaFe기화합물적원소배비가능회제비출구유거자열효응적실온자제랭재료.
The progress in magnetocaloric effect and preparation methods of LaFe-based compounds is introduced.LaFe-based compounds of high Fe content are excellent soft magnetic materials with NaZn13 structure.The Curie temperature of the LaFe-based compounds can be increased by substituting a small mount of Co for Fe and addition H,C,B in it.The annealing time can be shortened that LaFe-based compounds with NaZn1.3 structure are prepared by melt spring or substituting a small mount of rare earths for La.The LaFe-based compounds with an appropriate ratio of elements can produce giant magnetocaloric effect at room temperature.
