Microstructure and Magnetic Properties of Optimally Annealed Ni43Mn41Co5Sn11Heusler Alloy

Nastiti Elwindari, Budhy Kurniawan, Candra Kurniawan, Azwar Manaf

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1 Citation (Scopus)


In this work, synthesis and characterization of a polycrystalline Ni43Mn41Co5Sn11 (NMCS) alloy are reported. Alloy preparation was conducted by melting the constituent components of the designated alloy under an inert Argon (Ar) atmosphere in a vacuum mini arc-melting furnace. Microstructure observation to the as-cast and annealed ingots showing dendritic structure in the as-cast sample. Series of annealing treatment to the sample at 1173 K have changed dendrites progressively in the homogeneous structure after 24 hours annealing time. The annealed sample consisted of a NiMnCoSn main phase with 99.3 % volume fraction. Hence, the 24 hours annealed ingot is a single phase alloy. The curie temperature of the annealed NMCS alloys was found in the range 348∼351 K. Loop hysteresis evaluation of the annealed ingots showed that ingot which annealed for 12 hours showed the largest magnetization value of 57.96 emu/g.

Original languageEnglish
Article number012019
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 20 May 2017
Event3rd International Conference on Functional Materials Science 2016, ICFMS 2016 - Sanur-Bali, Indonesia
Duration: 19 Oct 201620 Oct 2016


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