V2O3‐Polymer Composite Thermistors

K. A. HU, DAWNE MOFFATT, JAMES RUNT, AHMAD SAFARI, ROBERT NEWNHAM

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

V2O3 was incorporated into polymer matrices to produce composite materials with low room‐temperature resistivities and sizable positive temperature coefficient (PTC) resistance effects. In addition, a negative temperature coefficient effect, associated with the semiconductor‐to‐metal phase transition in V2O3, was also observed. The resistivity vs temperature curve for these composites resembles a square well with three temperature regimes in which the composite behaves like a semiconductor, a metal, and an insulator. The intensity of the PTC effect for these composites was found to be as large as 10 orders of magnitude.

Original languageEnglish (US)
Pages (from-to)583-585
Number of pages3
JournalJournal of the American Ceramic Society
Volume70
Issue number8
DOIs
StatePublished - Aug 1987

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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