Phosphate Glasses And Glass-Ceramics For Medical Applications

Modified calcium phosphate glass systems meet the requirements for the development of different biomaterials. Bioactive, long-term stable phosphate glass-ceramics and resorbable phosphate glasses were prepared in the systems P205-Ca0-Al203-Na20 and P205-Cao-Mg0-Na20. Due to their high thermal expansion coefficients the bioactive phosphate glass-ceramics are excellently suited for coating materials. Using a salt-sintering process, porous resorbable glasses can be obtained. The properties of glass-ceramic coatings on cobalt/chromium alloys and the production of porous resorbable phosphate glasses are described.