POLYMER-ELECTROCERAMIC COMPOSITE THERMISTORS.

K. A. Hu, J. Runt, D. Moffatt, A. Safari, R. E. Newnham

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The semiconductor-to-metal phase transitions in oxides of vanadium and titanium were used to prepare composite thermistors which exhibit both NTC and PTC resistance effects. Composites were prepared by mixing V//2O//3 and other oxides in various proportions in both crystalline and amorphous polymers. These composites showed unusually large PTC resistivity increases of up to 10 orders of magnitude. Accompanying NTC effects as large as 5 orders of magnitude were observed at the semiconductor-to-metal transitions in the filler materials. Low room temperature resistivities were observed for all composites. The resistance vs. temperature curve of NTC-PTC composites resembles a square well with three temperature regimes: semiconductor to metal to insulator.

Original languageEnglish (US)
Title of host publicationPolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Material
PublisherASC
Number of pages1
ISBN (Print)0841209855
StatePublished - Dec 1 1986

Publication series

NamePolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Material
Volume55
ISSN (Print)0743-0515

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

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  • Cite this

    Hu, K. A., Runt, J., Moffatt, D., Safari, A., & Newnham, R. E. (1986). POLYMER-ELECTROCERAMIC COMPOSITE THERMISTORS. In Polymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Material (Polymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Material; Vol. 55). ASC.