Agglomeration of silica spheres under ultrasonication

Naoya Enomoto, Shingo Maruyama, Zenbe E. Nakagawa

Research output: Contribution to journalArticle

44 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1410-1415
Number of pages6
JournalJournal of Materials Research
Volume12
Issue number5
DOIs
Publication statusPublished - Jan 1 1997

Fingerprint

agglomeration
Silicon Dioxide
Sonication
Agglomeration
Silica
silicon dioxide
densification
Densification
Particle size analysis
hydrolysis
Hydrolysis
Diffraction
Ultrasonics
Transmission electron microscopy
transmission electron microscopy
collisions
Lasers
Polymers
synthesis
diffraction

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Agglomeration of silica spheres under ultrasonication. / Enomoto, Naoya; Maruyama, Shingo; Nakagawa, Zenbe E.

In: Journal of Materials Research, Vol. 12, No. 5, 01.01.1997, p. 1410-1415.

Research output: Contribution to journalArticle

Enomoto, N, Maruyama, S & Nakagawa, ZE 1997, 'Agglomeration of silica spheres under ultrasonication', Journal of Materials Research, vol. 12, no. 5, pp. 1410-1415. https://doi.org/10.1557/JMR.1997.0192
Enomoto, Naoya ; Maruyama, Shingo ; Nakagawa, Zenbe E. / Agglomeration of silica spheres under ultrasonication. In: Journal of Materials Research. 1997 ; Vol. 12, No. 5. pp. 1410-1415.
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