Liquid phase sintering of dense and porous glass-ceramics from coal fly-ash and waste glass

• Main Authors: Bossert J., Fidancevska E., Mangutova B., Panova B., Milosevski D., Milosevski M.
• Format: Article
• Language: English
• Published: International Institute for the Science of Sintering, Beograd 2004-01-01
• Series: Science of Sintering
• Subjects: waste; fly ash; glass-ceramic; sintering; porosity
• Online Access: http://www.doiserbia.nb.rs/img/doi/0350-820X/2004/0350-820X0402087B.pdf

Glass-ceramics were produced utilizing fly-ash from coal power stations and waste glass of TV monitors, windows and flask glass. The powder technology route was employed. The mixture of 50% fly ash and 50% waste TV glass increases the bending strength from 12±1 to 56±4 MPa and E-modulus from 6±1 to 26±3 GPa. Using polyurethane foam and C-fibers as pore creators porosity of 70±4 and 55±5 %, respectively, can be obtained-modulus and bending strength of the porous systems obtained by polyurethane foam and C-fibers was 2.7±0.5 GPa and 4.5±1 MPa and 7.1±1 GPa and 9.3±2 MPa respectively.