Fabrication of alumina fiber/glass matrix composite with conductive oxide and its relationship between strain and electrical resistance

Byungkoog Jang, Yoshiki Okuhara, Hideaki Matsubara

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The aim of the present work is to develop a self-diagnosis material with excellent sensing abilities via measurement of change in electrical resistance. A new self-diagnosis material, in which conductive RuO2 particles are dispersed in a glass matrix, was successfully fabricated by sintering at 850°C. The sensing properties of this self-diagnosis material were investigated in real time during tensile tests by measuring the electrical resistance change. The electrical resistance increased remarkably with increasing applied tensile load and materials showed excellent sensing performance at low strains <0.4% strain. The high sensitivity of the electrical resistance change is due to partial separation of the percolated structure between RuO2 particles, when microcracks form in the glass matrix. Sample were found to exhibit a residual electrical resistance after unloading during cyclic loading tests and the resistance value increased with increasing number of cycles.

Original languageEnglish
Pages (from-to)400-404
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume112
Issue number1307
DOIs
Publication statusPublished - Jan 1 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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