粉末冶金压实压力对Nd2Fe14B合金组织和磁性能的影响

2021 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET) Pub Date : 2021-11-23 DOI:10.1109/ICRAMET53537.2021.9650488

Dedi, Ghozi F. Rahman, Manty A. Ikaningsih, A. Septiani, N. Sudrajat, Muhamad Abdul Jabaris

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引用次数: 0

摘要

这项工作使用粉末冶金技术从钕、铁和硼粉末中制造出钕铁硼磁铁。本研究旨在确定压实压力如何影响Nd12 Fe14 b的磁性和相结构，烧结样品由于真空密封过程，具有密闭性和抗周围环境氧化性。在40 MPa压实压力下，Nd12 Fe14 B磁体的最大硬度为741.99微维氏硬度，最大矫顽力(Hc)为386 kOe。另一方面，当压实压力为30 MPa时，其最大剩磁感应率Br为0.33 t，但微观结构数据中孔隙率仍然明显，影响了Nd12 Fe14 B磁体的硬度和磁性能。

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Effect of Compaction Pressure on Microstructure and Magnetic Properties of Nd2Fe14B Alloys by Powder Metallurgy Process

This work used powder metallurgy to fabricate a Neodymium Iron Boron magnet from neodymium, iron, and boron powders. This study aims to determine how compaction pressure affects the magnetic characteristics and phase structure of Nd12 Fe14 B. Sintering samples are airtight and resistant to oxidation by the surrounding environment due to the vacuum sealing process. Under compaction pressures of 40 MPa, the maximum hardness of the Nd12 Fe14 B magnet was 741.99 micro Vickers Hardness, with the maximum coercivity (Hc) of 386 kOe. On the other hand, a compaction pressure of 30 MPa resulted in a maximum remanence induction (Br) of 0.33 T. However, porosity remains obvious in the microstructure data, affecting the hardness and magnetic properties of Nd12 Fe14 B magnets.

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2021 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)

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