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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. Silicon.

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In this paper, conventional simple methods of Q1 producing MMC with attained properties through the dis persion of silicon carbide in the matrix were investi11 gated. To achieve these objectives two step-mixing method of stir casting technique has been employed. Aluminum (99.66 %C.P) and SiC (320 and 1200 grits) were chosen as matrix and reinforcement materials respectively. Exper iments were conducted by varying weight fraction of SiC for 2.5 %, 5.0 %, 7.5 % and 10 %. The result indicated that the stir casting method was quite successful to obtain uniform dispersion of reinforcement in the matrix. This was evident by the improvement properties of composites over the base metal. Reinforced Aluminium Silicon Car bide (ASC) showed increase in Young’s Modulus (E) and hardness above the unreinforced case and marginal reduc tion of electrical conductivity was recorded for the com posites. The silicon carbide of 1200 grits (3 μm) showed increased Young’sModulus (E) and hardness of 1517.6Mpa and 26.1 Hv values at 7.5% volume fraction silicon carbidewhen compared with the silicon carbide 320 grit (29 μm)Also; the electrical conductivity properties of the two grit sizes of the Silicon Carbides were less than the base metal for all the volume fraction of Silicon Carbide

Item Type: Article
Uncontrolled Keywords: Particulate · Aluminium composite matrix · 30 Electrical properties · Silicon carbide
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 27 Sep 2017 12:12
Last Modified: 27 Sep 2017 12:12

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