includes papers on porous ceramics ranging from nanoporous to macroporous systems, including foams, honeycombs, 3d scaffolds, interconnected fibers, sintered hollow spheres, and aerogels; ceramics in medical applications; and geopolymers, a new of totally inorganic, aluminosilicate-based ceramics that are charge balanced by group i oxides (i.e., na, k, and cs). papers from the american ceramic societys 31st international conference on advanced ceramics and composites, held in daytona beach, florida, january 21-26, 2007.