A new low-density (less than 0.26 g/cm3, 16 lb/ft3) , high-temperature (higher than 1600ÁC, 2911ÁF) resin-impregnated ceramic article is proposed. Three objectives are involved in the proposal. The first objective is to develop a porous low-density structural ceramic insulation substrate (LSI), that can withstand an ultra-high temperature (>1600ÁC). The second objective is to develop a technique to impregnate the low-density ceramic structural substrates and to prepare SIRCA (silicone-impregnated reusable ceramic ablator) or SIRCA-like materials with a controllable char yield by using non-toxic solvents such as alcohol and water.The third objective is to develop a process to manufacture a non-shrinkable silicone-impregnated reusable flexible insulation (SIRFI).
Potential Commercial Applications:The proposed Phase I research has an opportunity to produce better light weight thermal protection ceramic articles and ablator systems. The new ablators can be used as protective shields for aerospace vehicles against high temperature and high energy radiation. The high-temperature ceramic insulation can also be used for automotive and other thermal insulation applications.
