中文摘要：

采用SPS（放电等离子烧结技术）制备了La（Fe11.2Co0.7Si1.1）B0.25合金,并进行了不同时间的热处理。利用XRD及SEM检测了合金的相结构及组织结构,同时对合金的等温磁熵变和绝热温变进行了研究。结果表明,随热处理时间的增加,合金的α-Fe相逐渐减少,主相La（Fe,Si）13相逐渐增加,其等温磁熵变和绝热温变也都逐渐增加。

英文摘要：

La（Fe11.2Co0.7Si1.1）B0.25 alloy was prepared by spark plasma sintering method and annealed for different time.The phase structure of the alloy was detected by XRD and SEM analysis apparatus.Also we studied the isothermal entropy change and the adiabatic temperature change of the alloy.The result showed that with the increasing of the heat treatment time,the α-Fe phase decreased,and the main phase NaZn13,the isothermal entropy change and the adiabatic temperature change all increased.