Glass matrix composites from coal flyash and waste glass

摘要: Abstract Glass matrix composites have been fabricated from waste materials by means of powder technology. Flyash coal power stations and glass, residue float glass production, were used. Commercial alumina platelets employed as the reinforcing component. For flyash contents up to 20% weight nearly fully dense compacts could be using relatively low sintering temperatures (650°C). higher densification was hindered due presence crystalline particles in as-received flyash, which jeopardized viscous flow mechanism. The addition resulted better mechanical properties than those unreinforced matrix, despite a residual porosity present. Young's modulus, modulus rupture, hardness fracture toughness increase with platelet volume fraction. brittleness index ( B ≈ 3 μm −1 2 ) suggests that good machinability. A qualitative analysis wear behaviour showed composite containing has resistance matrix. Overall, results indicate may compete conventional glasses glass-ceramics technical applications.