Investigation of the intermediate phase and magnetocaloric properties in high-pressure annealing Ni–Mn–Co–Sn alloy
Investigation of the intermediate phase and magnetocaloric properties in high-pressure annealing Ni–Mn–Co–Sn alloy
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DOI：
10.1063/1.3476351
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发表时间：
2010-08
影响因子：
4
通讯作者：
S. Ma;H. Xuan;C. L. Zhang;Lixi Wang;Q. Cao;D. H. Wang;Y. Du
中科院分区：
文献类型：
--
作者：
S. Ma;H. Xuan;C. L. Zhang;Lixi Wang;Q. Cao;D. H. Wang;Y. Du
Ni-Mn-Co-Sn合金采用高压退火法制备。除了提高的马氏体转变温度和奥氏体居里温度外，在该合金中还观察到高于马氏体转变的中间相。结果，在室温附近获得了两个连续的具有相同符号的磁熵变化，分别对应于马氏体相变和中间相变。讨论了高压退火 Ni-Mn-Co-Sn 合金中间相的起源。
The Ni–Mn–Co–Sn alloy is prepared by high-pressure annealing method. Besides the enhanced martensitic transformation temperature and the Curie temperature of austenite, an intermediate phase above the martensitic transformation is observed in this alloy. As a result, two successive magnetic entropy changes with the same sign are obtained around room-temperature, corresponding to the martensitic transformation and intermediate phase transition, respectively. The origin of the intermediate phase for high-pressure annealing Ni–Mn–Co–Sn alloy is discussed.