EXTENDING THE COMPOSITIONAL LIMIT OF COMBUSTION-SYNTHESIZED B4C-TIB2 COMPOSITES BY FIELD ACTIVATION

Authors
XUE H MUNIR ZA
Citation
H. Xue et Za. Munir, EXTENDING THE COMPOSITIONAL LIMIT OF COMBUSTION-SYNTHESIZED B4C-TIB2 COMPOSITES BY FIELD ACTIVATION, Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 27(3), 1996, pp. 475-480
Citations number
15
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Metallurgical and materials transactions. B, Process metallurgy and materials processing science → ACNP
ISSN journal
10735615
Volume
27
Issue
3
Year of publication
1996
Pages
475 - 480
Database
ISI
SICI code
1073-5615(1996)27:3<475:ETCLOC>2.0.ZU;2-F
Abstract
Composites of B4C-TIB2 with molar ratios B4C/TiB2 of up to 8 were synt hesized by field activated combustion, The combustion wave velocity de pended on this ratio and increased approximately linearly with the app lied field. The effect of the field was analyzed and its contribution to the combustion temperature was calculated. X-ray and microscopic an alyses showed the synthesis to be a two-step process. Titanium boride forms at or near the leading edge of the combustion zone and B4C forms at or near the trailing edge.