Synthesis of WSi2-ZrO2 and WSi2-Nb composites by field-activated combustion

Authors
Shon, IJ Rho, DH Kim, HC Munir, ZA
Citation
Ij. Shon et al., Synthesis of WSi2-ZrO2 and WSi2-Nb composites by field-activated combustion, J ALLOY COM, 327(1-2), 2001, pp. 66-72
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
327
Issue
1-2
Year of publication
2001
Pages
66 - 72
Database
ISI
SICI code
0925-8388(20010830)327:1-2<66:SOWAWC>2.0.ZU;2-2
Abstract
The synthesis of WSi2 and WSi2-x vol.%Nb and WSi2-y vol.%ZrO2 composites wi th x, y=0, 5, 7, 10, 12, 15, 17, 20 by field activated combustion was inves tigated. Self-propagating synthesis fronts can be initiated above minimum ( threshold) values which depended on the amount of added Nb and ZrO2. Reacti on wave velocities had a direct dependence on the applied field and on the amount of the second phase. XRD results showed the presence of the WSi2 pha se in all systems with the additional phase of Nb or ZrO2 for the composite s. (C) 2001 Elsevier Science B.V. All rights reserved.