Volume 9, Issue 4 (December 2012)                   IJMSE 2012, 9(4): 52-58 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
A. Amirkaveei, A. Saidi. PRODUCTION OF TiAl/Al2O3 AND TiAl/Ti2AlC/Al2O3 COMPOSITES BY EXPLOSION SYNTHESIS. IJMSE 2012; 9 (4) :52-58
URL: http://ijmse.iust.ac.ir/article-1-500-en.html
PRODUCTION OF TiAl/Al2O3 AND TiAl/Ti2AlC/Al2O3 COMPOSITES BY EXPLOSION SYNTHESIS
A. Amirkaveei , A. Saidi
Abstract:   (15676 Views)
Thermal explosion mode of combustion synthesis was used to fabricate TiAl-Al2O3 and TiAl-Ti2AlC-Al2O3 composites from elemental powder mixtures of TiO2, Al and C and characterized by XRD and Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive Spectroscopy (EDS). The experimental results showed that thermite reaction of Al with TiO2 caused TiAl-Al2O3 composite formation. By adding carbon powder to the thermite mixture, ternary carbide Ti2AlC and TiAl-Ti2AlC-Al2O3 composite were formed. With low carbon in thermite mixture, direct formation of Ti2AlC without intermediate TiC was observed. After TiAl formation, Ti2AlC precipitated from molten TiAl in the vicinity of carbon particles. SEM micrographs show that addition of carbon to thermite mixture changes the microstructure to a laminated form with plate-like grains.
Full-Text [PDF 1277 kb]   (5804 Downloads)    
Type of Study: Technical Note |
Add your comments about this article : Your username or Email:
CAPTCHA
Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb