Aluminum Silicon Carbide Particulate Metal Matrix Composite Development Via Stir Casting Processing

Inegbenebor, A.O. and Bolu, Christian and Babalola, P.O. and Inegbenebor, A. I. and Fayomi, O. S. I (2016) Aluminum Silicon Carbide Particulate Metal Matrix Composite Development Via Stir Casting Processing. Springer. ISSN 1570-646X

PDF Download (2MB)

Abstract

In this paper, conventional simple methods of producing MMC with attained properties through the dispersion of silicon carbide in the matrix are investigated. To achieve these objectives a two-step mixing method of stir casting technique was employed. Aluminum (99.66 %C.P) and SiC (320 and 1200 grits) were chosen as matrix and reinforcement materials respectively. Experiments were conducted by varying the weight fraction of SiC for 2.5 %, 5.0 %. 7.5 % and 10 %. The result indicated that the st ir casting method was quite successful to obtain uniform dispersion of reinforcement in the matrix. This was evident by the improvement of properties of composites over the base metal. Reinforced Aluminum Silicon Carbide (ASC) showed an increase in Young's modulus (E) and hardness above the unreinforced case and marginal reduction of electrical conductivity was recorded for the composites. The silicon carbide of 1200gnts (3 J.lm) showed increased Young's modulus (E) and hardness of 15 17.6 Mpa and 26.1Hv values at 7.5% volume fraction silicon carbide; when compared with the silicon carbide 320 grit (29 J.lm). Also; the electrical conductivity properties of the two grit sizes of the silicon carbides were less than the base metal for all the volume fractions of silicon carbide.

Item Type:	Article
Uncontrolled Keywords:	Particulate · Aluminum composite matrix · Electrical properties · Silicon carbide
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	04 Nov 2016 15:19
Last Modified:	04 Nov 2016 15:19
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/7386

Actions (login required)

View Item