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STUDY ON THE CHARACTERIZATION OF SILICA SAND NANOPARTICLES-IRON BASED COMPOSITES (Fe-Si02) USING NITROGEN ATMOSPHERE AS SINTERING ENVIRONMENT

ABU TALIB, MUHAMMAD HAFIZ (2011) STUDY ON THE CHARACTERIZATION OF SILICA SAND NANOPARTICLES-IRON BASED COMPOSITES (Fe-Si02) USING NITROGEN ATMOSPHERE AS SINTERING ENVIRONMENT. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Metal Matrix Composite has become an attractive alternative in various applications especially in automotive and aerospace industries nowadays. Therefore, in order to study the characterization of Silica Sand Nanoparticles-Iron Based Composites (Fe-SiO:z) using Nitrogen atmosphere as sintering environment, samples were fubricated by mixing pure iron with different weight percentages (5%, 10%, 15% and 20%) of silica sand nanoparticles and undergone several testing and observation before being evaluate. The silica sand nanoparticles-iron based composites were developed by powder metallurgy technique and being sintered in Nitrogen atmosphere at 1100°C. The characterization that being evaluated include physical properties (density of green and sintered silica sand nanoparticles-iron based composites), microstructure analysis (Optical Microscopy & FESEM), elemental composition (EDX Analysis) and mechanical properties (micro hardness test of silica sand nanoparticles-iron based composites). The research shows densities were reduced from pure iron to 20wt% of silica sand nanoparticles. However, there were increments in each density of the composite after being sintered which at the same time improved its hardness as well. During sintering, the microstructure also exhibits changes in porosity, pore size also pore shape and with the high rate of atomic motion progressively (diffusion) leads to growth of bonds between particles, shown by the microstructure analysis being conducted. Theoretically stated those properties will improved after sintering process were proven and the composite with highest weight percentage of silica sand nanoparticles (20wt%) offered the best characteristics compared to others.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Composites material - Nanocomposites
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 09 Oct 2013 11:07
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/8698

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