Ultrafine particles produced by Vacuum Evaporation onto a Running Oil Substrate (VEROS) and the modified method

The growth mechanism of particles produced by the VEROS method is studied through observation of particles formed by vacuum evaporation onto a still oil substrate. The result showed that the mechanism for VEROS does not have a significant difference from that on the still oil substrate. Coalescence...

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Bibliographic Details
Published in:Journal of crystal growth 1984-01, Vol.70 (1), p.533-535
Main Authors: Yatsuya, S., Tsukasaki, Y., Yamauchi, K., Mihama, K.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Methods of crystal growth
physics of crystal growth
Physics
Specific materials
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
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Summary:The growth mechanism of particles produced by the VEROS method is studied through observation of particles formed by vacuum evaporation onto a still oil substrate. The result showed that the mechanism for VEROS does not have a significant difference from that on the still oil substrate. Coalescence growth among particles is inevitable when vacuum distillation is employed to concentrate the particle density in the oil, since the ultrafine particles prepared by VEROS are obtained in the form of suspension in the oil. Replacement of oil with ethyl alcohol enables to avoid the difficulty. A preliminary experiment of vacuum evaporation onto cooled ethyl alcohol was performed.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(84)90314-2