Microscopic observation of the temperature coefficient distribution of dielectric material for microwave application using scanning photothermal dielectric microscope

Yasuo Cho, Teruaki Kasahara, Koichi Fukuda

Research output: Contribution to journalConference article

Abstract

Two dimensional images of the temperature coefficient of the distribution of the dielectric constant of a two phases composite ceramics composed of TiO2 and Bi2Ti4O11 are observed using scanning photothermal dielectric microscope. The obtained images clearly show that the each grain of TiO2 and Bi2Ti4O11 in the ceramics has a negative and a positive temperature coefficient, respectively and that the macroscopic averaged temperature coefficient of the ceramics is relatively low due to the cancellation of the coefficients with the opposite signs.

Original languageEnglish
Pages (from-to)1647-1650
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
Volume3
Publication statusPublished - 1997 Jan 1
Externally publishedYes
EventProceedings of the 1997 IEEE MTT-S International Microwave Symposium. Part 1 (of 3) - Denver, CO, USA
Duration: 1997 Jun 81997 Jun 13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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