Thermal-electrical breakdown of disordered conductor-insulator composites

Shingo Hirano, Akira Kishimoto

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume38
Issue number6 A/B
Publication statusPublished - Jun 15 1999
Externally publishedYes

Fingerprint

electrical faults
conductors
insulators
composite materials
Composite materials
Heat losses
constrictions
breakdown
Electric fields
cooling
heat
conductivity
electric fields
Hot Temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Thermal-electrical breakdown of disordered conductor-insulator composites. / Hirano, Shingo; Kishimoto, Akira.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 38, No. 6 A/B, 15.06.1999.

Research output: Contribution to journalArticle

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