Ultrarapid phase conversion in β″-alumina tubes

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

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


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
Issue number11
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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