Aluminum Silicon Carbide Particulate Metal Matrix Composite Development Via Stir Casting Processing
No Thumbnail Available
Files
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Science+Business Media B.V.
Abstract
Description
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.
Keywords
Q Science (General), QD Chemistry, TJ Mechanical engineering and machinery