Variable low temperature acoustic microscopy and its application to polymers

Kazushi Yamanaka, Yoshihiko Nagata, Toshio Koda

研究成果: Article査読

1 被引用数 (Scopus)

抄録

A low temperature acoustic microscope has been developed to study mechanical and acoustic property of materials at temperatures from 30°C to - 94°C. In the application to a 30/Lm thick PVDF film, sharpening of the half wavelength resonance of longitudinal wave across the film was observed by cooling. For 0.6 mm thick epoxy adhesive layer, struc- tures not visible at ambient temperature became clear when the sample was cooled to - 30°C. This improvement was explained in terms of the decrease in the attenuation loss and impedance mismatching loss. Basedon those results, temperature controlled acoustic imaging is proposed for nondestructive evaluation of polymers.

本文言語English
ページ(範囲)292-295
ページ数4
ジャーナルJapanese journal of applied physics
29
DOI
出版ステータスPublished - 1990 1

ASJC Scopus subject areas

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

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