Temperature coefficient image of dielectric material

Yasuo Cho, Teruaki Kasahara

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Two dimensional images of the distribution of the relative values of the temperature coefficient of the dielectric constant of a two phase composite ceramic composed of TiO2 and Bi2Ti4O11 are observed using a photothermal dielectric microscope. The images clearly show that each grain of TiO2 has a negative temperature coefficient and each of Bi2Ti4O11 a positive one, and that the macroscopic averaged temperature coefficient of the ceramic is relatively small due to the cancellation of the coefficients with opposite signs.

Original languageEnglish
Pages (from-to)6001-6003
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number9 SUPPL. B
Publication statusPublished - 1997 Sep
Externally publishedYes


  • Dielectric ceramics
  • Dielectric temperature coefficient
  • Microscopic observation
  • Photothermal dielectric microscope

ASJC Scopus subject areas

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


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