Lattice parameters and cation distribution of solid solutions of calcium and lead hydroxyapatite
- 1 December 1981
- journal article
- research article
- Published by Springer Nature in Calcified Tissue International
- Vol. 33 (1) , 243-247
- https://doi.org/10.1007/bf02409444
Abstract
Solid solutions of calcium hydroxyapatite (CaOHA) and lead hydroxyapatite (PbOHA) of the formula Ca10−x Pbx (PO4)6 (OH)2 were prepared by coprecipitation followed by heating at 800°C in a stream of CO2-free water vapor of 1 atm. The samples were apatitic in the range 02+ were located in the sixfold position for cations. There was a miscibility gap in the apatite series of solid solutions in the range 1<x<4, whereas apatites in the range 6<x<10 were not stable under the conditions of preparation. It is concluded that apatites in the range 4<x<6 represent a minimum in the free energy of solid solutions between CaOHA and PbOHA.This publication has 54 references indexed in Scilit:
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