2017 Volume 58 Issue 7 Pages 1097-1099
In this study, hybrid composites reinforced with Carbon short fibers and alumina short fibers were optimized using low-pressure casting. The total fraction of fibers in the composite was 10 vol%, with equal parts of Carbon short fibers and alumina short fibers (i.e., 5 vol% each). For comparison with the hybrid composites, two composites were separately reinforced with 10 vol% each of the Carbon short fibers and alumina short fibers. All the composites were fabricated using a low-pressure casting process by infiltrating molten Al (A1070) into a preform. Both types of short fibers were randomly distributed inside the Al matrix, and the low-pressure casting method achieved dense hybrid composite materials (over 98% relative density). The Vickers hardness and thermal conductivity of the composites were investigated.
