Ultrarapid phase conversion in β″-alumina tubes

Matthew Henrichsen, Jinha Hwang, Vinayak P Dravid, D. Lynn Johnson

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

β″-Alumina, the electrolyte of choice of sodium/sulfur and sodium/metal chloride batteries and alkali-metal thermal-electric converters, was sintered from precursor phases to high β″-phase purity in less than 15 s from the onset of densification by rapid pass-through rf induction coupled plasma sintering. The maximum instantaneous shrinkage rate was 1.8% /s. The resistivity was measured to be 13.8±1.4 Ω·cm. The rapid conversion found is a significant improvement over conventional processing of β″-alumina, which requires extended postsintering annealing times to obtain high β″-phase purity.

Original languageEnglish (US)
Pages (from-to)2861-2862
Number of pages2
JournalJournal of the American Ceramic Society
Volume83
Issue number11
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Henrichsen, M., Hwang, J., Dravid, V. P., & Johnson, D. L. (2000). Ultrarapid phase conversion in β″-alumina tubes. Journal of the American Ceramic Society, 83(11), 2861-2862.