Lattice parameters and cation distribution of solid solutions of calcium and lead hydroxyapatite
Verbeeck, RMH; Lassuyt, CJ; Heijligers, HJM; Driessens, FCM; Vrolijk, JWGA
HERO ID
690094
Reference Type
Journal Article
Year
1981
Language
English
PMID
| HERO ID | 690094 |
|---|---|
| In Press | No |
| Year | 1981 |
| Title | Lattice parameters and cation distribution of solid solutions of calcium and lead hydroxyapatite |
| Authors | Verbeeck, RMH; Lassuyt, CJ; Heijligers, HJM; Driessens, FCM; Vrolijk, JWGA |
| Journal | Calcified Tissue International |
| Volume | 33 |
| Issue | 1 |
| Page Numbers | 243-247 |
| 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 0<x<6 and contained lead phosphates as a second phase at higher Pb/Ca ratios. Lattice parameters and cation distribution of the apatitic samples were determined by X-ray diffraction. The lattice parameters varied linearly with x in the range considered, whereas all Pb2+ 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. |
| Doi | 10.1007/BF02409444 |
| Pmid | 6268259 |
| Wosid | WOS:A1981LY22600009 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |