MAGNETIC PROPERTIES OF Nd_2(Fe_(1-x)M_x)_(14)B(M=C, Si) ALLOYS

Acta Metall Sin

1988, Vol. 24

Issue (5): 420-424 DOI:

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MAGNETIC PROPERTIES OF Nd_2(Fe_(1-x)M_x)_(14)B(M=C, Si) ALLOYS

XING Feng;JIANG Chao;HO Wenwang Department of Physics; Peking University

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XING Feng;JIANG Chao;HO Wenwang Department of Physics; Peking University. MAGNETIC PROPERTIES OF Nd_2(Fe_(1-x)M_x)_(14)B(M=C, Si) ALLOYS. Acta Metall Sin, 1988, 24(5): 420-424.

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Abstract The magnetic properties of Nd_2(Fe_(1-x)M_x)_(14)B (M=C, Si) compoundshave been investigated. Substituting Fe by a small amount of metalloid C and Siatoms, the compounds are in tetragonal structure and have uniaxial anisotropy. Thesubstitution of C for part of Fe makes the Curie temperature and the intrinsic coer-civity of bond samples decrease at low temperature. The replacement of Fe by Simakes the Curie temperature increase with a maximum at the vicinity of x=0. 15.When the range of the content of Si is 0≤x≤0.10, the coercivity distinctly in-creases at room temperature, from 62.7 kA/m at x=0 to 138.7kA/m at x=0.06, wherethe residual magnetization has a maximum; at the mean time the saturation magne-tization decreases only by a small amount.

Key words: Nd-Fe-B alloy magnetic properties Curie temperature

Received: 18 May 1988

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