Synthesis of new apatite phases by spray pyrolysis and their characterization |
| |
Authors: | D Veilleux N Barthelemy J-C Trombe M Verelst |
| |
Affiliation: | (1) Centre d'Elaboration de Matériaux et d'Etudes Structurales, UPR8011, BP 4347, 29 rue Jeanne Marvig, 31055 Toulouse Cédex 4, France |
| |
Abstract: | This paper describes the synthesis of some apatite compounds, called britholites, by an aerosol pyrolysis technique, which compared to conventional methods of solid-state chemistry, presents the advantages of reducing noticeably the temperature and the duration of the treatment. Britholites are minerals based on Ca10 – x
Ln
x
(PO4)6 – x
(SiO4)
x
X
2 formula (with X = F–, OH–, X
2 = O2–); they are promising materials for nuclear waste storage. In a second part we have synthesized and characterized a new apatite phase where the substitution of calcium by barium in britholite leads to a monophased solid solution Ca9 – x
Ba
x
Nd(PO4)6 – x
(SiO4)F2 for 6 < x < 9. The possible interest of this new material is discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|