DOI: 10.1346/ccmn.1998.0460206. Light Scattering Study on Sol-Gel Transformation of SiO<sub>2</sub> Colloid at Extremely High Concentrations

Light Scattering Study on Sol-Gel Transformation of SiO2 Colloid at Extremely High Concentrations

10.1346/ccmn.1998.0460206

Crossref journal-article

Cambridge University Press (CUP)

Clays and Clay Minerals (56)

Abstract

AbstractLudox SiO2 sols with a reasonably uniform size of 12 nm and in the high concentration of 10 to 40 wt% were transformed to gels by lowering the pH. The process from sol to gel, followed by light scattering, did not show a sign of fractal growth within the length scale of observation (>0 nm). Rather, a density fluctuation due to a dynamic (non-equilibrium) disorder was apparent. Together with the results of viscosity measurements, it was concluded that the process consists of 3 stages: 1) A dynamic (non-equilibrium) density fluctuation grows rapidly. 2) Such density fluctuation acquires some order. 3) The entire bulk loses fluidity and becomes a macroscopic gel.

Bibliography

Xu, Y., & Koga, Y. (1998). Light Scattering Study on Sol-Gel Transformation of SiO2 Colloid at Extremely High Concentrations. Clays and Clay Minerals, 46(2), 161â166.

Authors 2

Yingnian Xu (first)
Yoshikata Koga (additional)

References 29 Referenced 4

10.1103/PhysRevLett.56.2199
10.1016/0021-9797(69)90172-6
10.1103/PhysRevA.41.4379
{'key': 'S0009860400020619_CR7', 'first-page': '366', 'volume-title': 'The chemistry of silica', 'author': 'Her', 'year': '1979'} / The chemistry of silica by Her (1979)
10.1103/PhysRevB.37.1368
10.1103/PhysRevE.51.590
10.1103/PhysRevLett.52.2371
10.1103/PhysRevLett.56.738
10.1103/PhysRevA.39.252
10.1346/CCMN.1996.0440205
10.1103/PhysRevA.36.1803
10.1103/PhysRevA.36.3415
10.1063/1.445870
10.1021/j100369a086
10.1103/PhysRevA.17.2030
10.1103/PhysRevLett.57.3117
10.1021/ma00237a018
10.1103/PhysRevB.36.1754
{'key': 'S0009860400020619_CR5', 'volume-title': 'Small angle scattering of X-rays', 'author': 'Guinier', 'year': '1955'} / Small angle scattering of X-rays by Guinier (1955)
10.1007/BF01384035
10.1146/annurev.pc.42.100191.001523
10.1103/PhysRevLett.40.820
10.1021/ja00008a004
10.1103/PhysRevA.34.4988
10.1103/PhysRevA.43.858
10.1021/cr00099a003
{'key': 'S0009860400020619_CR25', 'first-page': '100', 'volume-title': 'Introduction to phase transitions and critical phenomena', 'author': 'Stanley', 'year': '1971'} / Introduction to phase transitions and critical phenomena by Stanley (1971)
10.1021/j100202a004
10.1063/1.430867

Dates

Type	When
Created	19 years ago (Aug. 23, 2006, 7:38 a.m.)
Deposited	1 year, 5 months ago (March 11, 2024, 7:10 a.m.)
Indexed	1 year, 5 months ago (March 11, 2024, 7:40 a.m.)
Issued	27 years, 4 months ago (April 1, 1998)
Published	27 years, 4 months ago (April 1, 1998)
Published Online	1 year, 5 months ago (Feb. 28, 2024)
Published Print	27 years, 4 months ago (April 1, 1998)

Funders 0

None

BibTeX

@article{Xu_1998, title={Light Scattering Study on Sol-Gel Transformation of SiO2 Colloid at Extremely High Concentrations}, volume={46}, ISSN={1552-8367}, url={http://dx.doi.org/10.1346/ccmn.1998.0460206}, DOI={10.1346/ccmn.1998.0460206}, number={2}, journal={Clays and Clay Minerals}, publisher={Cambridge University Press (CUP)}, author={Xu, Yingnian and Koga, Yoshikata}, year={1998}, month=apr, pages={161–166} }

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