Formation of polycrystalline MgB2 synthesized by powder in sealed tube method with different initial boron phase

Sigit Dwi Yudanto, Agung Imaduddin, Budhy Kurniawan R., Azwar Manaf

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

1 Citation (Scopus)

Abstract

Magnesium diboride, MgB2 is a new high critical temperature superconductor that discovered in the beginning of the 21st century. The MgB2 has a simple crystal structure and a high critical temperature, which can be manufactured in several forms like thin films, tapes, wires including bulk in the large scale. For that reason, the MgB2 has good prospects for various applications in the field of electronic devices. In the current work, we have explored the synthesis of MgB2 polycrystalline using powder in a sealed tube method. Different initial boron phase for the synthesized of MgB2 polycrystalline were used. These were, in addition to magnesium powders, crystalline boron, amorphous boron and combination both of them were respectively fitted in the synthesis. The raw materials were mixed in a stoichiometric ratio of Mg: B=1:2, ground using agate mortar, packed into stainless steel SS304. The pack was then sintered at temperature of 800°C for 2 hours in air atmosphere. Phase formation of MgB2 polycrystalline in difference of initial boron phase was characterized using XRD and SEM. Referring to the diffraction pattern and microstructure observation, MgB2 polycrystalline was formed, and the formation was effective when using the crystalline Mg and fully amorphous B as the raw materials. The critical temperature of the specimen was evaluated by the cryogenic magnet. The transition temperature of the MgB2 specimen synthesized using crystalline magnesium and full amorphous boron is 42.678 K (ΔTc = 0.877 K).

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Materials and Metallurgical Engineering and Technology, ICOMMET 2017
Subtitle of host publicationAdvancing Innovation in Materials Science, Technology and Applications for Sustainable Future
EditorsMas Irfan P. Hidayat
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416406
DOIs
Publication statusPublished - 3 Apr 2018
Event3rd International Conference on Materials and Metallurgical Engineering and Technology: Advancing Innovation in Materials Science, Technology and Applications for Sustainable Future, ICOMMET 2017 - Surabaya, Indonesia
Duration: 30 Oct 201731 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1945
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Conference on Materials and Metallurgical Engineering and Technology: Advancing Innovation in Materials Science, Technology and Applications for Sustainable Future, ICOMMET 2017
CountryIndonesia
CitySurabaya
Period30/10/1731/10/17

Keywords

  • MgB
  • critical temperature
  • phase
  • powder in sealed tube
  • superconductor

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