The effect of humidity on the voltage-current characteristic of SnO2 based ceramic varistor

I. Skuratovsky, A. Glot*, E. Di Bartolomeo, Enrico Traversa, R. Polini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Tin dioxide based ceramics in the SnO2-Bi2O3 -Co3O4-Nb2O5-Cr2 O3 system exhibit highly non-linear voltage-current characteristics (non-linearity coefficient reaches 55-60 in electric fields of about 3500 V cm-1) in parallel with high humidity sensitivity in low electric fields (humidity sensitivity coefficient reaches 105). Such ceramics can be used for the fabrication of a device with combined varistor and humidity sensor properties. Voltage-current characteristics of ceramics with different amounts of bismuth oxide are studied in air with different relative humidity contents.

Original languageEnglish (US)
Pages (from-to)2597-2604
Number of pages8
JournalJournal of the European Ceramic Society
Volume24
Issue number9
DOIs
StatePublished - Aug 1 2004

Keywords

  • Electrical properties
  • Humidity
  • Sensors
  • SnO
  • Varistors

ASJC Scopus subject areas

  • Ceramics and Composites

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