PREPARATION AND COMPRESSIVE STRENGTH BEHAVIOR OF POROUS CERAMICS WITHBETA-CA(PO3)(2) FIBER SKELETONS

High-strength calcium metaphosphate fibers, which are expected to show good biocompatibility, are extracted from crystallized products of ul traphosphate glasses by aqueous leaching, Porous ceramics with skeleto ns of beta-Ca(PO3)(2) fibers for biomedical use are prepared by the si ntering of the fibers. In the present work, porous ceramics having a l arge porosity of similar to 70% were obtained. The compressive test of these porous ceramics showed that large strains of 0.2-0.3 are requis ite for their fracture; the calcium phosphate porous ceramics in this work show much higher flexibility than conventional ceramics. The pres ent work discusses the influence of the preparation conditions of the porous ceramics on their compressive strength behavior.