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[July 2004]
ZIRCAR Introduces New Refractory Sheet
ZIRCAR Refractory Composites Inc (Florida, NY, USA) has announced the introduction of its Refractory Sheet Type RSLE-57. This is a low expansion, high strength, reinforced silica matrix composite, designed for use as a high strength insulator in induction hot press applications.
ZIRCAR says that the product's very low thermal expansion coefficient and high hot strength combine to give it thermal shock resistance not found in other structural ceramic matrix composite materials. This low coefficient of expansion is said to provide remarkable resistance to thermal shock up to 1200°C in an oxidising atmosphere and permits the product's use with rapid variation in temperature in that zone.
Beyond 1200°C, it transforms into a crystalline structure, while maintaining its properties up to 1650°C, providing that there is no significant fall in temperature. At temperatures above this, the material will exhibit surface glazing.
www.zrci.com
ENDS