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

doi:10.1007/s11661-007-9435-8

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

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科研成果: 期刊稿件 › 文章 › 同行评审

24 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
卷	39
期	2
DOI	https://doi.org/10.1007/s11661-007-9435-8
出版状态	已出版 - 2月 2008
已对外发布	是

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abstract = "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.",

author = "Liu, {D. M.} and Nie, {Z. H.} and Wang, {Y. D.} and Liu, {Y. D.} and G. Wang and Y. Ren and L. Zuo",

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AU - Liu, D. M.

AU - Nie, Z. H.

AU - Wang, Y. D.

AU - Liu, Y. D.

AU - Wang, G.

AU - Ren, Y.

AU - Zuo, L.

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N2 - 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.

AB - 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.

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JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

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

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