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Tai Nguyen So - Vietnam National University, Ha Noi - VNU >
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| Title: | Influence of P substitution for B on the structure and properties of nanocrystalline Fe73.5Si15.5Nb3Cu1B7-xP x alloys |
| Authors: | Chau N.
Luong N.H.
Chien N.X.
Thanh P.Q.
Van Vu L. |
| Keywords: | Crystallization kinetics
Grain size
Nanocrystalline materials
Soft ferromagnetism |
| Issue Date: | 2003 |
| Publisher: | Physica B: Condensed Matter |
| Citation: | Volume 327, Issue 4-Feb, Page 241-243 |
| Abstract: | Amorphous ribbons of Fe73.5Si15.5Nb3Cu1B7-xP x (x=0,1,2,3, and 4) have been prepared by rapid cooling on a single copper wheel. The crystallization of α-Fe(Si) phase is independent of the P content in the alloys. Based on Kissinger plots, the activation crystallization energies are determined. The size of the nanoparticles crystallized on an amorphous matrix in heat-treated ribbons is found to be 10-12nm. The crystallization fraction is determined by using thermal-analysis equipment and we show that after 30min annealing, this fraction is over 80%. The thermomagnetic curves measured between room temperature and 1000K revealed clearly two magnetic phases: an amorphous phase at low temperatures and a crystalline one at high temperatures. © 2002 Elsevier Science B.V. All rights reserved. |
| URI: | http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/11868 |
| ISSN: | 9214526 |
| Appears in Collections: | Articles of Universities of Vietnam from Scopus
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