Anomalous velocity change of surface wave near the gelation point

Hirotaka Okabe; Keiichi Kuboyama; Kazuhiro Hara; Shoichi Kai

doi:10.1016/S0921-4526(98)01304-0

Anomalous velocity change of surface wave near the gelation point

Hirotaka Okabe, Keiichi Kuboyama, Kazuhiro Hara, Shoichi Kai

Applied Physics

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

We studied the properties of surface waves during the gelation process of tungstic acid and gelatin and silica gel by the time resolved surface wave measurements. The anomaly is clearly shown in the change of the wave number exponent x (ω to approximately k^x, the values 1.5 and 1.0 indicate surface tension and elastic wave, respectively). x of the tungstic acid was about 1.4 in the sol state and rapidly decreased to 1.0 at the gelation point. x of gelatin was about 1.4 (same as tungstic acid) in the sol state and decreased gradually after the gelation point. On the other hand, x of silica gel remained near 1.5 after the gelation point.

Original language	English
Pages (from-to)	73-76
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	263-264
DOIs	https://doi.org/10.1016/S0921-4526(98)01304-0
Publication status	Published - Jan 1 1999
Event	Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 - Lancaster, Great Britain Duration: Jul 26 1998 → Jul 31 1998

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(98)01304-0

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title = "Anomalous velocity change of surface wave near the gelation point",

abstract = "We studied the properties of surface waves during the gelation process of tungstic acid and gelatin and silica gel by the time resolved surface wave measurements. The anomaly is clearly shown in the change of the wave number exponent x (ω to approximately kx, the values 1.5 and 1.0 indicate surface tension and elastic wave, respectively). x of the tungstic acid was about 1.4 in the sol state and rapidly decreased to 1.0 at the gelation point. x of gelatin was about 1.4 (same as tungstic acid) in the sol state and decreased gradually after the gelation point. On the other hand, x of silica gel remained near 1.5 after the gelation point.",

author = "Hirotaka Okabe and Keiichi Kuboyama and Kazuhiro Hara and Shoichi Kai",

year = "1999",

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doi = "10.1016/S0921-4526(98)01304-0",

language = "English",

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pages = "73--76",

journal = "Physica B: Condensed Matter",

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note = "Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 ; Conference date: 26-07-1998 Through 31-07-1998",

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TY - JOUR

T1 - Anomalous velocity change of surface wave near the gelation point

AU - Okabe, Hirotaka

AU - Kuboyama, Keiichi

AU - Hara, Kazuhiro

AU - Kai, Shoichi

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We studied the properties of surface waves during the gelation process of tungstic acid and gelatin and silica gel by the time resolved surface wave measurements. The anomaly is clearly shown in the change of the wave number exponent x (ω to approximately kx, the values 1.5 and 1.0 indicate surface tension and elastic wave, respectively). x of the tungstic acid was about 1.4 in the sol state and rapidly decreased to 1.0 at the gelation point. x of gelatin was about 1.4 (same as tungstic acid) in the sol state and decreased gradually after the gelation point. On the other hand, x of silica gel remained near 1.5 after the gelation point.

AB - We studied the properties of surface waves during the gelation process of tungstic acid and gelatin and silica gel by the time resolved surface wave measurements. The anomaly is clearly shown in the change of the wave number exponent x (ω to approximately kx, the values 1.5 and 1.0 indicate surface tension and elastic wave, respectively). x of the tungstic acid was about 1.4 in the sol state and rapidly decreased to 1.0 at the gelation point. x of gelatin was about 1.4 (same as tungstic acid) in the sol state and decreased gradually after the gelation point. On the other hand, x of silica gel remained near 1.5 after the gelation point.

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U2 - 10.1016/S0921-4526(98)01304-0

DO - 10.1016/S0921-4526(98)01304-0

M3 - Conference article

AN - SCOPUS:0032657922

SN - 0921-4526

VL - 263-264

SP - 73

EP - 76

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98

Y2 - 26 July 1998 through 31 July 1998

ER -

Anomalous velocity change of surface wave near the gelation point

Abstract

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