Thermal-electrical breakdown of disordered conductor-insulator composites

Shingo Hirano, Akira Kishimoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We present the first observations of `thermal-electrical breakdown' in disordered conductor-insulator composites with a high electric field. This differs from simple electrical breakdown governed by local heat. When a large current flows through the most conductive pathway in a composite, the constriction of the current at the most electro-resistive point in the pathway increases the Joule heat dissipation, and a localized thermal-electrical domain `hot spot' appears on the composite. The thermal-electrical breakdown of the disordered conductor-insulator composite results from the local conductivity; the hot spot starts at the most resistive point on one of the most conductive pathways and the breakdown progresses as the hot spot evolves.

Original languageEnglish
Pages (from-to)L662-L664
JournalJapanese Journal of Applied Physics, Part 2: Letters
Issue number6 A/B
Publication statusPublished - Jun 15 1999
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)


Dive into the research topics of 'Thermal-electrical breakdown of disordered conductor-insulator composites'. Together they form a unique fingerprint.

Cite this