Title

Bulk iodoapatite ceramic densified by spark plasma sintering with exceptional thermal stability

Document Type

Article

Publication Date

1-1-2014

Abstract

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. © 2014 The American Ceramic Society.

Publication Source (Journal or Book title)

Journal of the American Ceramic Society

First Page

2409

Last Page

2412

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