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The microstructure, physical and mechanical properties of silicon carbide with alumina and yttria as sintering additives

Johari, M.I.A. and Mustapha, M. and Mamat, O. and Kakooei, S. and Ginta, T.L. and Ismadi, M.Z.P. (2016) The microstructure, physical and mechanical properties of silicon carbide with alumina and yttria as sintering additives. ARPN Journal of Engineering and Applied Sciences, 11 (22). pp. 13300-13304.

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Abstract

Silicon carbide has gain much attention in recent years as the best material for the application in harsh environment condition. This is due to their excellent properties such as good wear resistance with high hardness and strength at elevated temperature. In this study, the sintered specimen of silicon carbide with sintering additives of four different compositions were fabricated using powder metallurgy method. Physical properties were measured by means of bulk density and apparent porosity whereas the mechanical property was measured in term of hardness. From this study, it can be observed that the silicon carbide was sintered to about 0.93 of its relative density by using alumina and yttria as sintering additives. This finding was as a result of a eutectic liquid formed between alumina and yttria at sintering temperature of 1930°C. The specimen with 25 wt. of sintering additives gave the maximum value of hardness of 2601 HV. © 2006-2016 Asian Research Publishing Network (ARPN).

Item Type:Article
Impact Factor:cited By 3
ID Code:25365
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:27 Aug 2021 12:59
Last Modified:27 Aug 2021 12:59

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