ABSTRACT
Porous solids could be considered as composite materials consisting of pores and solid matrix. Such composite materials are utilized in many engineering applications ranging from acoustic absorption to heat shields in reentry vehicles. Porous ceramics are widely used as filters, catalyst supports, low dielectric substances, thermal insulators, and lightweight structural components. Porous-solid materials are of interest in biomedical applications as well [1-3]. Many industrial materials such as wood, carbon, ceramics, foams, and bricks are also porous in nature.
