Tensile Properties and Microstructure of SiC Fibre Reinforced Multi Metal Matrix Composites

Abstract

The matrix coated fibre production route is established for titanium matrix composites of highest quality. However, the commonly used method for consolidation (hot isostatic pressing) leads to shrinkage, distortion or even fibre fracture. Some fibre arrangements require consolidation without pressure. The process proposed in this paper uses low melting alloys to consolidate the composite material by infiltrating the matrix coated fibres. Tensile tests at room temperature have shown that these metal matrix composites may have the potential to compete with conventionally processed titanium matrix composites. No significant decrease in strength is expected up to 400°C. One important goal of the paper is to emphasize important points that have to be considered for the development of this new type of composite material.