Influence of post-aging on the microstructure and properties of Sm 2(Co,Fe,Cu,Zr) 17 magnets

Qingjun Zheng; Sike Xia; Alan Dozier; Tongguang Zhai; Michael P. Effgen; Jeff Whilhite

Influence of post-aging on the microstructure and properties of Sm ₂(Co,Fe,Cu,Zr) ₁₇ magnets

Qingjun Zheng, Sike Xia, Alan Dozier, Tongguang Zhai, Michael P. Effgen, Jeff Whilhite

Chemical and Materials Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Effects of the post-aging condition on the microstructure and magnetic performance of Sm ₂(Co, Fe, Cu, Zr) ₁₇ magnets were investigated. The second quadrant M-H hysteresis curve was measured. The microstructure was characterized using OM, XRD, and TEM. It was found that, as the aging temperature increased in the range of 850°C - 900°C, the remanence of the Sm ₂(Co, Fe, Cu, Zr) ₁₇ magnets increased while the coercivity decreased. Both the remanence and coercivity of the Sm ₂(Co, Fe, Cu, Zr) ₁₇ magnets were improved by a two-step aging, aging at 900°C, followed by the aging at lower- temperature, e.g, 850°C. Microstructure analysis indicated that the improvement in the magnetic properties may result from change of the pyramidal cell structure and microchemistry with the aging conditions.

Original language	English
Title of host publication	Materials Science and Technology 2005 - Proceedings of the Conference
Pages	203-210
Number of pages	8
State	Published - 2005
Event	Materials Science and Technology 2005 Conference - Pittsburgh, PA, United States Duration: Sep 25 2005 → Sep 28 2005

Publication series

Name	Materials Science and Technology
Volume	4
ISSN (Print)	1546-2498

Conference

Conference	Materials Science and Technology 2005 Conference
Country/Territory	United States
City	Pittsburgh, PA
Period	9/25/05 → 9/28/05

Keywords

Cellular structure
Coercivity
Post-aging
Sm (Co, Fe, Cu, Zr) magnets

ASJC Scopus subject areas

General Engineering

Cite this

@inproceedings{57f125a6305143f2b4d4862d73274ab1,

title = "Influence of post-aging on the microstructure and properties of Sm 2(Co,Fe,Cu,Zr) 17 magnets",

abstract = "Effects of the post-aging condition on the microstructure and magnetic performance of Sm 2(Co, Fe, Cu, Zr) 17 magnets were investigated. The second quadrant M-H hysteresis curve was measured. The microstructure was characterized using OM, XRD, and TEM. It was found that, as the aging temperature increased in the range of 850°C - 900°C, the remanence of the Sm 2(Co, Fe, Cu, Zr) 17 magnets increased while the coercivity decreased. Both the remanence and coercivity of the Sm 2(Co, Fe, Cu, Zr) 17 magnets were improved by a two-step aging, aging at 900°C, followed by the aging at lower- temperature, e.g, 850°C. Microstructure analysis indicated that the improvement in the magnetic properties may result from change of the pyramidal cell structure and microchemistry with the aging conditions.",

keywords = "Cellular structure, Coercivity, Post-aging, Sm (Co, Fe, Cu, Zr) magnets",

author = "Qingjun Zheng and Sike Xia and Alan Dozier and Tongguang Zhai and Effgen, {Michael P.} and Jeff Whilhite",

year = "2005",

language = "English",

isbn = "0873396456",

series = "Materials Science and Technology",

pages = "203--210",

booktitle = "Materials Science and Technology 2005 - Proceedings of the Conference",

}

Zheng, Q, Xia, S, Dozier, A, Zhai, T, Effgen, MP & Whilhite, J 2005, Influence of post-aging on the microstructure and properties of Sm ₂(Co,Fe,Cu,Zr) ₁₇ magnets. in Materials Science and Technology 2005 - Proceedings of the Conference. Materials Science and Technology, vol. 4, pp. 203-210, Materials Science and Technology 2005 Conference, Pittsburgh, PA, United States, 9/25/05.

Influence of post-aging on the microstructure and properties of Sm ₂(Co,Fe,Cu,Zr) ₁₇ magnets. / Zheng, Qingjun; Xia, Sike; Dozier, Alan et al.
Materials Science and Technology 2005 - Proceedings of the Conference. 2005. p. 203-210 (Materials Science and Technology; Vol. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Zheng, Qingjun

AU - Xia, Sike

AU - Dozier, Alan

AU - Zhai, Tongguang

AU - Effgen, Michael P.

AU - Whilhite, Jeff

PY - 2005

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N2 - Effects of the post-aging condition on the microstructure and magnetic performance of Sm 2(Co, Fe, Cu, Zr) 17 magnets were investigated. The second quadrant M-H hysteresis curve was measured. The microstructure was characterized using OM, XRD, and TEM. It was found that, as the aging temperature increased in the range of 850°C - 900°C, the remanence of the Sm 2(Co, Fe, Cu, Zr) 17 magnets increased while the coercivity decreased. Both the remanence and coercivity of the Sm 2(Co, Fe, Cu, Zr) 17 magnets were improved by a two-step aging, aging at 900°C, followed by the aging at lower- temperature, e.g, 850°C. Microstructure analysis indicated that the improvement in the magnetic properties may result from change of the pyramidal cell structure and microchemistry with the aging conditions.

AB - Effects of the post-aging condition on the microstructure and magnetic performance of Sm 2(Co, Fe, Cu, Zr) 17 magnets were investigated. The second quadrant M-H hysteresis curve was measured. The microstructure was characterized using OM, XRD, and TEM. It was found that, as the aging temperature increased in the range of 850°C - 900°C, the remanence of the Sm 2(Co, Fe, Cu, Zr) 17 magnets increased while the coercivity decreased. Both the remanence and coercivity of the Sm 2(Co, Fe, Cu, Zr) 17 magnets were improved by a two-step aging, aging at 900°C, followed by the aging at lower- temperature, e.g, 850°C. Microstructure analysis indicated that the improvement in the magnetic properties may result from change of the pyramidal cell structure and microchemistry with the aging conditions.

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KW - Sm (Co, Fe, Cu, Zr) magnets

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