Glass Ceramic Foams Materials

Foam is an object formed by trapping pockets of gas in a liquid or solid.

Glass ceramic foams materials. It is made by heating a mixture of crushed or granulated glass and a blowing agent chemical foaming agent such as carbon or limestone near the melting point of the glass the blowing agent releases a gas producing a foaming. Glass ceramic foams were produced by using blast furnace slag bfs and waste glass as raw materials choosing tio 2 zro 2 and caf 2 as nucleating agents and adding caco 3 na 3 po 4 12h 2 o and na 2 b 4 o 7 5h 2 o as a foaming agent a foaming stabilizer and a flux agent respectively. Abstract ceramic foam materials with highly porous microstructure are playing vital role in increasing areas especially for those with requirements for open channels and superior specific surface. Soap foams are also known as suds.

The petrurgic method represents a simple inexpensive and energy saving method compared with the conventional. Jacers is a leading source for top quality basic science research and modeling spanning the diverse field of ceramic and glass materials science. Highlights this work investigated the preparation of a glass ceramic from a mixture of bottom ash and fly ash by the petrurgic method. Dried foams were later subjected to heat treatment at 700 900 c.

Solid foams can be closed cell or open cell in closed cell foam the gas forms discrete pockets each. The interactions between glass and fly ash upon firing determined the formation of new crystal phases particularly nepheline sodium alumino silicate with remarkable crushing strength 6 mpa with a porosity of about 70. Ceramic foam is a tough foam made from ceramics manufacturing techniques include impregnating open cell polymer foams internally with ceramic slurry and then firing in a kiln leaving only ceramic material the foams may consist of several ceramic materials such as aluminium oxide a common high temperature ceramic and gets insulating properties from the many tiny air filled voids within the. Glass ceramic foams are porous materials filled with small uniform pores which are closed or inter communicating.

The effects of different bfs contents on the microstructure bulk density water absorption and. This paper has reported a sustainable way of producing high strength glass foam using scrap lcd panel of tvs as the glass source and manganese dioxide. In most foams the volume of gas is large with thin films of liquid or solid separating the regions of gas. The specific structure of glass ceramic foams determined that this sort of materials has many properties including low density low thermal conductivity high surface area good thermal shock resistance high specific strength etc.

The cooling duration and ratio of the initial materials are dominant factors in controlling all the characteristics of the final glass ceramic. Thus preparing glass ceramic foam materials using variety of wastes as raw material has attracted much interest because this waste treatment method can convert a large amount of waste into products with high added value.