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.
|ジャーナル||IEEE MTT-S International Microwave Symposium Digest|
|出版ステータス||Published - 1997 1 1|
|イベント||Proceedings of the 1997 IEEE MTT-S International Microwave Symposium. Part 1 (of 3) - Denver, CO, USA|
継続期間: 1997 6 8 → 1997 6 13
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