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ID 47007
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Author
Takagawa, Yuto
Teranishi, Takashi
Abstract
Alumina/carbon-black composite ceramics with different percolation thresholds were fabricated by changing the size ratio of constituent particles. The dependence of resistivity on pressure was established for each sample. The compositional dependence of resistivity can be explained by percolation theory. The percolation threshold decreases with increasing alumina/carbon-black particle size ratio. The pressure dependence of the resistivity increases as the composition approaches the percolation threshold. When the relative composition at the percolation threshold is fixed, the sensitivity increases with increasing matrix/dispersoid initial particle size ratio.
Keywords
Percolation
Piezoresistivity
Pressure sensor
Particle size
Published Date
2011-07-31
Publication Title
Materials Letters
Volume
volume65
Issue
issue14
Publisher
Elsevier Science B.V.
Start Page
2197
End Page
2200
ISSN
0167-577X
NCID
AA1063425X
Content Type
Journal Article
language
英語
Copyright Holders
© 2011 Elsevier B.V. All rights reserved.
File Version
author
Refereed
True
DOI
Web of Sience KeyUT