Synthesis and characterization of polycrystalline fe1.025se prepared using mechanical alloying followed by powder in a sealed tube method

Sigit Dwi Yudanto, Ryan Fitriandhani, Andika Widya Pramono, Agung Imaduddin, Budhy Kurniawan

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

Abstract

In this work, preparation of Fe1.025Se samples was done using a solid-state reaction. Iron and selenium powder were used as raw materials. The raw materials were milled using a shaker mill for 5 hours after weighed in an atomic ratio of Fe:Se=1.025:1. To find out the formation of polycrystalline Fe1.025Se, the milled powder was then compacted in a stainless-steel tube and sintered at a temperature of 355°C (for sample 1) and 745°C (for sample 2) for 6 hours. All samples were sintered in the air atmosphere and cooled rapidly in the air. XRD was used to analyze the phase formation. Based on the diffraction pattern calculation, the sintered sample at a temperature of 745°C has a higher mass fraction of the tetragonal phase than the sample sintered at 355°C. The lattice parameters of the sample sintered at a temperature of 745°C are a = 3.7688 Å and c = 5.5236 Å. According to the resistivity measurement results, it appears that the sample sintered at 745°C has a critical temperature onset of ~13.28 K.

Original languageEnglish
Title of host publicationMagnetism and its Application
EditorsBudi Purnama, Darminto, Risdiana
PublisherTrans Tech Publications Ltd
Pages96-101
Number of pages6
ISBN (Print)9783035717044
DOIs
Publication statusPublished - 2020
EventInternational Conference on Magnetism and Its Application, ICMIA 2019 - Surakarta, Indonesia
Duration: 20 Nov 201921 Nov 2019

Publication series

NameKey Engineering Materials
Volume855 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

ConferenceInternational Conference on Magnetism and Its Application, ICMIA 2019
Country/TerritoryIndonesia
CitySurakarta
Period20/11/1921/11/19

Keywords

  • FeSe
  • Milled
  • Phase
  • Resistivity
  • Sintered

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