Patent ID: 7745363
Filing Date: 2010-06-29
Classification: B32B,C03C,C04B,Y02P

Abstract:
1. A composite article formed of composite material comprising: a particulate ceramic filler selected from the group consisting of cordierite, vitreous silica, β-eucryptite, β-spodumene, solid solutions of β-quartz, solid solutions of β-spodumene, and combinations thereof, the particulate filler constituting between 50 and 97% by weight of the material; and a geopolymer binder, the geopolymer binder constituting 3 to 50% by weight of the material, wherein, after firing to a temperature in the range of 700-1100° C., the composite article has an average linear coefficient of thermal expansion over the temperature range 25-800° C. that does not exceed 30×10