Magnetic Properties and Structures of HDDR Nd2Fe14B-Based Magnet

Fa Zeng Lian; Jian Tang; Jun Hua You

doi:10.4028/www.scientific.net/AMR.311-313.1242

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 311-313Magnetic Properties and Structures of HDDR...

Magnetic Properties and Structures of HDDR Nd₂Fe₁₄B-Based Magnet

Abstract:

The phase structures and the magnetic properties of HDDR magnet powders produced from the alloys with a nominal composition of Nd₁₄Fe_balCo₁₄B_6.5AlxZry (x=0, ~0.35; y= 0, ~0.35) have been studied. The variation of the magnetic properties of the bonded magnets with HD temperature and DR temperature was investigated. A scruple addition of Al is useful to improve the magnetic properties of HDDR bonded magnets. And the composite addition of a little Al and Zr can further enhance the magnetic properties. As x = 0.15 and y = 0.1, the magnet properties can reach _iH_c = 990 kA/m, Br = 0.86 T and (BH)max = 118.4kJ/m³. The reasons for the enhancement of the magnetic properties by the composite addition of a little Al and Zr are analyzed.

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Advanced Materials Research (Volumes 311-313)

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1242-1245

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https://doi.org/10.4028/www.scientific.net/AMR.311-313.1242

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August 2011

Authors:

Fa Zeng Lian, Jian Tang, Jun Hua You

Keywords:

HDDR, Magnet Properties, NdFeCoBAlZr, Phase Structure

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