The Effect of Cu, P, Ga and Gd on Microstructure and Magnetic Properties in the PrFeCoBNb HD Sintered Magnets-Reference-Cited by-同舟云学术

The Effect of Cu, P, Ga and Gd on Microstructure and Magnetic Properties in the PrFeCoBNb HD Sintered Magnets

Published:2010-10 Issue: Volume:660-661 Page:273-278
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Mendes T.¹,Silva S.C.²,Périgo E.A.³,de Faria Jr. Rubens Nunes⁴,Takiishi Hidetoshi⁴

Affiliation:

1. Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP)

2. Instituto de Pesquisas Energéticas e Nucleares IPEN – CNEN/SP

3. Institute for Technological Research

4. IPEN/CNEN, Instituto de Pesquisas Energéticas e Nucleares

Abstract

An evaluation of the effect of alloying elements on the microstructure and magnetic properties of Pr15FebalCo8B7Nb0.05Mx (M = Cu, P, Gd and Ga; 0 ≤ x ≤ 0.25) sintered magnets has been carried out. A mixture of alloys and the high-energy milling technique have been used to prepare the magnets. The alloying elements have influenced the remanence, intrinsic coercivity and particularly the squareness factor (SF). Phosphorus addition improved (BH)max (254 kJm-3 ) and SF around 10% (0.89). The same improvement addition on intrinsic coercivity was observed with Gallium (1100mT) compared to the standard composition Pr15FebalCo8B7Nb0.05 (1000mT) magnet. Comparisons between the squareness factors obtained using the J×μ0H curve profile (SF), the estimated (sf) using microstructural parameters and Sf using a (BH)max and Br correlation have also been carried out.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.660-661.273.pdf

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