New sequences of phase transition in Ni-Mn-Ga ferromagnetic shape memory nanoparticles

D. M. Liu, Z. H. Nie, Y. D. Wang*, Y. D. Liu, G. Wang, Y. Ren, L. Zuo

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

25 引用 (Scopus)

摘要

In-situ high-energy X-ray diffraction was used for tracing the structural transitions in Ni2MnGa and Ni47 Mn25Ga22Co6 nanoparticles that were prepared by a ball-milling and subsequent annealing process. A decrease in martensitic transformation temperature was evidenced in all annealed nanoparticles. It was found that a three-layered modulated structure, usually observed as a metastable premartensitic phase in coarse-grained alloys, becomes a stable phase in the annealed Ni2MnGa nanoparticles up to 4 K.

源语言英语
页(从-至)466-469
页数4
期刊Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
39
2
DOI
出版状态已出版 - 2月 2008
已对外发布

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