Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-28T17:32:09.205Z Has data issue: false hasContentIssue false
  • English
  • Français

Agglomeration of silica spheres under ultrasonication

Published online by Cambridge University Press:  31 January 2011

Naoya Enomoto ,
Shingo Maruyama  and
Zenbe-e Nakagawa
Naoya Enomoto
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan
Shingo Maruyama
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan
Zenbe-e Nakagawa
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan
Get access

Abstract

Power ultrasound of 20 kHz was applied to the synthesis of silica spheres via the controlled hydrolysis of tetraethoxysilane (TEOS). Silica spheres of about 0.3 μm were agglomerated to form tolerably uniform, dense particles of about 2 μm through 90 min sonication. This agglomeration behavior was examined by laser diffraction particle size analysis and transmission electron microscopy. It was found that the agglomeration process involves (I) an incubation period in which no agglomeration occurs, (II) rapid formation of ramified particles, and (III) their densification. It was inferred that sonication enhances collision among silica spheres.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 5 , May 1997 , pp. 1410 - 1415
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Tomomasa, Y., Enomoto, N., Ohya, Y., and Nakagawa, Z., Proc. MRS Int. Mtg. on Adv. Mater. 3, 107–114 (1989).Google Scholar
2.Enomoto, N., Katsumoto, M., and Nakagawa, Z., J. Ceram. Soc. Jpn. 102 (12), 1105–1111 (1994).CrossRefGoogle Scholar
3.Enomoto, N., Koyano, T., and Nakagawa, Z., Ultrasonics Sonochemistry 3 (2), 105–109 (1996).CrossRefGoogle Scholar
4.Enomoto, N., Akagi, J., and Nakagawa, Z., Ultrasonics Sonochemistry 3 (2), 97–103 (1996).CrossRefGoogle Scholar
5.Roy, R., Agrawal, D. K., and Srikanth, V., J. Mater. Res. 6, 2412–2416 (1991).CrossRefGoogle Scholar
6.Stöber, W., Fink, A., and Bohn, E., J. Colloid Interface Sci. 26, 62–69 (1968).CrossRefGoogle Scholar
7.Aoki, M., Ring, T. A., and Haggerty, J. S., Adv. Ceram. Mater. 2 (3A), 209–212 (1987).CrossRefGoogle Scholar
8.Suslick, K. S., Doktycz, S. J., and Flint, E. B., Ultrasonics 28, 280–290 (1990).CrossRefGoogle Scholar
9.Chouonpa-Gijutsu-Binran (Handbook for Ultrasonic Technology), edited by Saneyoshi, J., Kikuchi, Y., and Nomoto, O. (Nikkan-Kogyo, Tokyo, 1978), p. 1143 (in Japanese).Google Scholar
10.Shimohira, T. and Ishijima, H., J. Chem. Soc. Jpn. 1981 (9), 1503–1505 (1981) (in Japanese).Google Scholar
11. ibid. 9), p. 204.Google Scholar
12.Shibata, S., Mizutani, T., Yano, T., and Yamane, M., Proc. 1992 Annual Mtg. Ceram. Soc. Jpn., Apr. 1992, p. 222 (in Japanese).Google Scholar