Evolution of the 2-dimensional intensity distribution of the scattered lights from gelling tungstic acid

Kazuhiro Hara, Keiichi Kuboyama, Hirotaka Okabe, Kazumi Matsushige

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

A conventional system for light scattering measurements utilizing a laser, a TV camera and a frame memory was constructed in order to investigate the gelation process of tungstic acid. The results revealed marked changes in the 2-dimensional intensity distribution of the scattered lights at about 3600 s and 5000 s after ion exchange in the present experimental conditions ([Na2WO4] =0.76 mol/l, 296 K). By the tilting test, it was confirmed that the first characteristic time corresponded to the gelation time, around which a marked intensity increase at the position corresponding to the laser beam was observed, while at around 5000 s, the increase occurred mainly on the outskirts of the beam, probably because of the progressive densification in the network structure. Moreover, a close correlation between the scattering characteristics and the gelation process is suggested from the numerical data.

本文言語英語
ページ(範囲)996-1000
ページ数5
ジャーナルJapanese journal of applied physics
32
8 R
DOI
出版ステータス出版済み - 2 1993

All Science Journal Classification (ASJC) codes

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

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