Microstructure of Zr containing NdFeB

Journal Article · Mon Sep 01 00:00:00 EDT 1997 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.619583· OSTI ID:566407

Kim, A S; Camp, F E ^[1]

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1. Crucible Materials Corp., Pittsburgh, PA (United States). Crucible Research Center

Simultaneous additions of Co, Al, and Zr to Nd(Dy)FeB alloys substantially improve the coercivity and corrosion resistance, and somewhat increases the Curie temperature. It was found that the microstructure of starting materials affects the final magnetic properties of the resulting sintered magnets. A cast ingot having {alpha}-Fe with Nd{sub 2}Fe{sub 14}B, Nd-rich and Zr-rich phases has generated higher coercivity than a homogenized ingot without {alpha}-Fe. This may be explained by the grain boundary phase change of the resulting sintered magnets.

• OSTI ID: 566407
• Report Number(s): CONF-970468--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt2 Vol. 33; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ADDITIONS
BORON ALLOYS
COBALT ADDITIONS
EXPERIMENTAL DATA
IRON ALLOYS
MAGNETIC PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
NEODYMIUM ALLOYS
ZIRCONIUM ADDITIONS