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Titolo: MAGNETIC HARDENING OF MECHANICALLY ALLOYED NDFE12-XVX 1-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-2) AND THEIR NITRIDES
Autore: TANG SL; WU CH; JIN XM; WANG BW; LI GS; DING BZ; CHUANG YC;
- Indirizzi:
- XIANGTAN UNIV,DEPT MECH ENGN XIANGTAN 411105 PEOPLES R CHINA CHINESE ACAD SCI,INST MET RES SHENYANG 110015 PEOPLES R CHINA CHINESE ACAD SCI,INT CTR MAT PHYS SHENYANG 110015 PEOPLES R CHINA
- Titolo Testata:
- Journal of magnetism and magnetic materials
fascicolo: 2,
volume: 189,
anno: 1998,
pagine: 202 - 206
- SICI:
- 0304-8853(1998)189:2<202:MHOMAN>2.0.ZU;2-I
- Fonte:
- ISI
- Lingua:
- ENG
- Keywords:
- MECHANICAL ALLOYING; THMN12-TYPE STRUCTURE COMPOUND; PERMANENT MAGNETIC PROPERTY;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Science Citation Index Expanded
- Science Citation Index Expanded
- Citazioni:
- 9
- Recensione:
- Indirizzi per estratti:
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- Citazione:
- S.L. Tang et al., "MAGNETIC HARDENING OF MECHANICALLY ALLOYED NDFE12-XVX 1-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-2) AND THEIR NITRIDES", Journal of magnetism and magnetic materials, 189(2), 1998, pp. 202-206
Abstract
The structure and permanent magnetic properties of isotropic powders of NdFe12-xVxNdelta compounds mere investigated by using mechanical alloying. It was found that heat treatment of as-milled powders at 700-900 degrees C resulted in the formation of Nd(Fe,V)(12) phase except for the sample with x = 1, for which the crystallization was not complete and a large amount of alpha-Fe(V) was present at temperatures lower than 750 degrees C. After nitrogenation, the volume expansion was about 5% and the Curie temperature enhancements were 140 to 160 degrees C. In NdFe12-xVxNdelta the values of T-c fall in the range 469-485 degrees C. It has been found that the intrinsic coercivities strongly increased with increasing V content. The maximum coercivity of H-i(c) = 10.96 kOe is achieved at 750 degrees C with x = 2.00. The difference between the coercivities of the mechanical alloyed Nd(Fe,V)(12)N-delta powders with different V content is attributed to their different crystallization behavior and phase stability during nitrogenation. (C) 1998 Elsevier Science B.V. All rights reserved.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 20:50:19