PROPERTY AND MICROSTRUCTURAL CORRELATIONS TO WEAR ON REACTION BONDED MATERIALS

摘要

Composites of silicon carbide (SiC) and silicon (Si); SiC, Si and aluminum (Al); and SiC, diamond and Si are fabricated by the reactive infiltration of molten alloys into preforms of said particles and carbon. Depending upon the application, these materials can be used in many situations due to their favorable properties including high hardness, low thermal expansion, high thermal conductivity and high stiffness. Particularly, these materials display minimal wear owing to their high hardness and high stiffness. In this study, grit size, material, and material loading will be studied to garner an understanding of the effects on wear properties in these systems.