Synthesize and microstructure characterization of Ni43Mn41Co5Sn11 heusler alloy

Nastiti Elwindari, Azwar Manaf

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The ferromagnetic heusler alloys are promising materials in many technical applications due to their multifunctional properties such as shape memory effect, magnetocaloric effect, giant magnetoresistance, etc. In this work, synthesize and characterization of polycrystalline Ni43Mn41Co5Sn11 (NMCS) alloy are reported. Alloy preparation was conducted by melting the constitute elements under an innert Argon (Ar) atmosphere in a vacuum mini arc-melting furnace. Homogenization of the microstructure of the as-cast ingot was obtained after annealing process at 750°C for 48 hours. It is shown that the dendrites structure has changed to equaixed grains morphology after homogenization. Microstructure characteristics of material by x-ray diffraction revealed that the alloy has a L21-type cubic crystal structure as the main phase at room temperature. In order to induce the shape anisotropy, a forging treatment was applied to show the shape orientation of material. Various enhancements of magnetic properties in a longitudinal direction were observed at various degree of anisotropy. The microstructure changes of as-cast NMCS and effects of homogenization treatments as studied by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) are discussed in details.

Original languageEnglish
Title of host publication2016 Conference on Fundamental and Applied Science for Advanced Technology, ConFAST 2016
Subtitle of host publicationProceeding of ConFAST 2016 Conference Series: International Conference on Physics and Applied Physics Research, ICPR 2016, International Conference on Industrial Biology , ICIBIO 2016, and International Conference on Information System and Applied Mathematics, ICIAMATH 2016
EditorsRara Sandhy Winanda, Qonitatul Hidayah, Iwan Tri Riyadi Yanto, Nursyiva Irsalinda, Oktira Roka Aji, Damar Yoga Kusuma, Syarifah Inayati
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414037
DOIs
Publication statusPublished - 17 Jun 2016
Event2016 Conference on Fundamental and Applied Science for Advanced Technology, ConFAST 2016 - Yogyakarta, Indonesia
Duration: 25 Jan 201626 Jan 2016

Publication series

NameAIP Conference Proceedings
Volume1746
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2016 Conference on Fundamental and Applied Science for Advanced Technology, ConFAST 2016
CountryIndonesia
CityYogyakarta
Period25/01/1626/01/16

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