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

Tiankai Yao, Fengyuan Lu, Hongtao Sun, Jianwei Wang, Rodney C. Ewing, Jie Lian

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)2409-2412
Number of pages4
JournalJournal of the American Ceramic Society
Volume97
Issue number8
DOIs
StatePublished - Aug 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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