Iodoapatite powder prepared by high-energy ball milling is densified by Spark Plasma Sintering to ∼96% theoretical density. X-ray Diffraction and First-principle Calculation indicates the sintered phase is iodine-deficient apatite with chemical composition of Pb9.85(VO4) 6I1.7 and iodine confinement over 8 wt%. Thermogravimetric analysis shows the bulk iodoapatite displays exceptionally stability without iodine release until 670°C. The greatly improved iodine confinement can be attributed to the dense matrix upon rapid consolidation from highly activated powders by mechanical attrition.
|Original language||English (US)|
|Number of pages||4|
|Journal||Journal of the American Ceramic Society|
|State||Published - Jan 1 2014|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry