Volume 34, Issue 3 (Journal of Advanced Materials-fall 2015)                   jame 2015, 34(3): 49-58 | Back to browse issues page


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Zakeri N, Otroj S, Saeri M. Study of Nano-Titania Addition on Mechanical Strength of Mullite-Bonded Alumina-Silicon Carbide Nano-Composites. jame. 2015; 34 (3) :49-58
URL: http://jame.iut.ac.ir/article-1-717-en.html
Materials Group, Faculty of Engineering, Shahrekord University, Shahrekord, Iran
Abstract:   (4860 Views)

In this study, the effect of nano-titania addition on the mechanical strength of mullite-bonded alumina-siliconcarbide nano-composites was investigated. To this end, the gel-casting process via nano-silica sol was used for shaping the nano-composite.The firing temperature of composition was determined by use of STA. The compressive and bending strengths of samples were measured after firing at 1300 °C. Besides, the physical properties, phase composition and microstructure of the composites were evaluated after firing. The results showed that the use of nano-titania up to 1 wt.% had a higher effect on improvement of nano-composite mechanical strength. The nano-titania addition led to increasing of mullite phase and higher growth of its needle-like grains. Enhancing of ceramic bonds between grains and the improvement of mechanical strength were obtained by increasing the mullite phase.

Full-Text [PDF 853 kb]   (839 Downloads)    
Type of Study: Research | Subject: General
Received: 2015/12/16 | Accepted: 2015/12/16 | Published: 2015/12/16

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