XRD Studies on Transformation of Calcium-Deficient Apatite to β and α TCP in Dynamic and Technological Conditions
Calcium phosphates (CaPs): hydroxyapatite (HA) and TCP are common biomaterials used in orthopedic, dental and maxillofacial surgery as bone fillers and also as drug carriers. Studies of the β→α TCP transformation and formation of mono-, bi- or three-phase CaPs materials: βTCP-αTCP-HA are of principal importance. Stability of calcium phosphate ceramics depends on many factors. Our dynamic studies by high temperature XRD measurements showed that monoclinic αTCP was a considerably stable phase after its creation completed at 1200°C. Different phase composition was obtained in technological conditions.
Pietro VINCENZINI, John A. JANSEN, Kazuhiko ISHIHARA and Thomas J. WEBSTER
B. Handke et al., "XRD Studies on Transformation of Calcium-Deficient Apatite to β and α TCP in Dynamic and Technological Conditions", Advances in Science and Technology, Vol. 76, pp. 54-59, 2010