Evolution of the 2-Dimensional Intensity Distribution of the Scattered Lights from Gelling Tungstic Acid
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概要
- 論文の詳細を見る
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 ([Na_2WO_4)]=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.
- 社団法人応用物理学会の論文
- 1993-02-15
著者
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岡部 弘高
九大院工
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KUBOYAMA Keiichi
Venture Business Laboratory, Kyoto University
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Matsushige Kazumi
Department Of Applied Science Faculty Of Engineering Kyushu University
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Hara Kazuhiro
Department Of Applied Science Faculty Of Engineering 36 Kyushu University
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Okabe Hirotaka
Department Of Applied Physics And Physico-informatics Keio University
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KUBOYAMA Keiichi
Department of Applied Science, Faculty of Engineering, Kyushu University
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Kuboyama Keiichi
Venture Business Laboratory Kyoto University
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