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 language | English (US) |
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Pages (from-to) | 2597-2604 |
Number of pages | 8 |
Journal | Journal of the European Ceramic Society |
Volume | 24 |
Issue number | 9 |
DOIs | |
State | Published - Aug 2004 |
Externally published | Yes |
Keywords
- Electrical properties
- Humidity
- Sensors
- SnO
- Varistors
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry