本文综述了反钙钛矿结构负热膨胀材料,阐述了磁相变与材料负热膨胀性能之间的联系,对不同体系Mn_3XN材料的负热膨胀特性进行了对比,分析了相互之间的膨胀系数及其负热膨胀的响应区间,并对该材料的应用前景和今后的研究方向进行了展望.
A large magnetostriction in an antiperoviskite system, Mn_3XN, is well-known for their large magnetovolume effect. The relation of magnetic transformation and negative thermal expansion was discussed. The contrastive difference of several Mn_3XN system was summarized, and the diversification of the linear thermal expansion with different element replacement was analyzed. It is proposed with a view to practical applications and further experiment.
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