中国物理B ›› 2022, Vol. 31 ›› Issue (8): 87103-087103.doi: 10.1088/1674-1056/ac6edf

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Tailored martensitic transformation and enhanced magnetocaloric effect in all-d-metal Ni35Co15Mn33Fe2Ti15 alloy ribbons

Yong Li(李勇)1,†, Liang Qin(覃亮)1, Hongguo Zhang(张红国)2, and Lingwei Li(李领伟)1   

  1. 1 Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials&Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;
    2 Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing 100124, China
  • 收稿日期:2022-03-04 修回日期:2022-05-07 接受日期:2022-05-12 出版日期:2022-07-18 发布日期:2022-08-02
  • 通讯作者: Yong Li E-mail:yongli@hdu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 52001102 and 51771003).

Tailored martensitic transformation and enhanced magnetocaloric effect in all-d-metal Ni35Co15Mn33Fe2Ti15 alloy ribbons

Yong Li(李勇)1,†, Liang Qin(覃亮)1, Hongguo Zhang(张红国)2, and Lingwei Li(李领伟)1   

  1. 1 Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials&Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;
    2 Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing 100124, China
  • Received:2022-03-04 Revised:2022-05-07 Accepted:2022-05-12 Online:2022-07-18 Published:2022-08-02
  • Contact: Yong Li E-mail:yongli@hdu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 52001102 and 51771003).

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摘要： The crystal structure, martensitic transformation and magnetocaloric effect have been studied in all-$d$-metal Ni$_{35}$Co$_{15}$Mn$_{33}$Fe$_{2}$Ti$_{15}$ alloy ribbons with different wheel speeds (15 m/s (S15), 30 m/s (S30), and 45 m/s (S45)). All three ribbons crystalize in B2-ordered structure at room temperature with crystal constants of 5.893(2) Å, 5.898(4) Å, and 5.898(6) Å, respectively. With the increase of wheel speed, the martensitic transformation temperature decreases from 230 K to 210 K, the Curie temperature increases slightly from 371 K to 378 K. At the same time, magnetic entropy change ($\Delta S_{\rm m}$) is also enhanced, as well as refrigeration capacity ($RC$). The maximum $\Delta S_{\rm m}$ of 15.6(39.7) J/kg$\cdot$K and $RC$ of 85.5 (212.7) J/kg under $\Delta H = 20$ (50) kOe (1 ${\rm Oe}=79.5775$ A$\cdot$m$^{-1}$) appear in S45. The results indicate that the ribbons could be the candidate for solid-state magnetic refrigeration materials.

关键词: martensitic transformation, magnetocaloric effect, wheel speeds, all-d-metal Heusler ribbons

Abstract: The crystal structure, martensitic transformation and magnetocaloric effect have been studied in all-$d$-metal Ni$_{35}$Co$_{15}$Mn$_{33}$Fe$_{2}$Ti$_{15}$ alloy ribbons with different wheel speeds (15 m/s (S15), 30 m/s (S30), and 45 m/s (S45)). All three ribbons crystalize in B2-ordered structure at room temperature with crystal constants of 5.893(2) Å, 5.898(4) Å, and 5.898(6) Å, respectively. With the increase of wheel speed, the martensitic transformation temperature decreases from 230 K to 210 K, the Curie temperature increases slightly from 371 K to 378 K. At the same time, magnetic entropy change ($\Delta S_{\rm m}$) is also enhanced, as well as refrigeration capacity ($RC$). The maximum $\Delta S_{\rm m}$ of 15.6(39.7) J/kg$\cdot$K and $RC$ of 85.5 (212.7) J/kg under $\Delta H = 20$ (50) kOe (1 ${\rm Oe}=79.5775$ A$\cdot$m$^{-1}$) appear in S45. The results indicate that the ribbons could be the candidate for solid-state magnetic refrigeration materials.

Key words: martensitic transformation, magnetocaloric effect, wheel speeds, all-d-metal Heusler ribbons

中图分类号:  (Density functional theory, local density approximation, gradient and other corrections)

  • 71.15.Mb
31.15.A- (Ab initio calculations) 71.20.-b (Electron density of states and band structure of crystalline solids) 75.20.En (Metals and alloys)