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바카라 토토-E Article

Synthesis and magnetic properties of Sb added MnBi magnets for applications at sub-zero temperatures

	성명	김종렬 ()
	소속	공학바카라 토토 재료화학공학과
	캠퍼스
	우수선정주	2022년 02월 4째주

Author

Bae, Cheoljun (Dept Mat 바카라 토토 & Chem Engn); Lee, Gyutae (Dept Mat 바카라 토토 & Chem Engn); Kang, Min Kyu (Dept Mat 바카라 토토 & Chem Engn); Lee, Hansol (Dept Mat 바카라 토토 & Chem Engn); 김종렬 (Dept Mat 바카라 토토 & Chem Engn) corresponding author;

Corresponding Author Info

Kim, J (corresponding author), Hanyang Univ, Dept Mat 바카라 토토 & Chem Engn, Ansan 15588, South Korea.

E-mail

jina@hanyang.ac.kr

Document Type

Article

Source

JOURNAL OF ALLOYS AND COMPOUNDSVolume:899 Issue: Pages:- Published:2022

Times Cited

External Information

Abstract

MnBi-LTP bulk magnets containing substitutional Sb element were fabricated using gas-atomizing process, surfactant-assisted wet magnetic compaction process, and thermal compaction process. Magnetic properties and microstructures were investigated according to the processing parameters. It was found that substitutional Sb element effectively refined the grain size of gas-atomized powders. The conventional ball milling process was able to pulverize these powders into fine particles with a single crystalline structure and minimize their phase decomposition, resulting in a (BH)(max) of 11.0 MGOe. By analyzing the effects of the compaction pressure on the density and magnetic alignment during the surfactant-assisted wet compaction process, Mn54Bi45.9Sb0.1 bulk magnet with H-c of 10.0 kOe at room temperature and temperature coefficient H-c of 0.68%/K was successfully fabricated. Furthermore, effects of Sb element on the temperature dependency of H-c in the bulk magnet were discussed. (C) 2021 Elsevier B.V. All rights reserved.

Web of 바카라 토토ence Categories

Chemistry, Physical; Materials 바카라 토토ence, Multidi바카라 토토plinary; Metallurgy & Metallurgical Engineering

Funding

Future Materials Discovery Program through the National Research Foundation of Korea (NRF) - Ministry of 바카라 토토ence, ICT & Future Planning [NRF-2016M3D1A1027836]

Language

English

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