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Journal of Materials Science

, Volume 27, Issue 19, pp 5239–5243 | Cite as

Effect of ultrasonic waves on crystallization from a supersaturated solution of alum

  • Naoya Enomoto
  • Tae -Hyun Sung
  • Zenbe -E Nakagawa
  • Shen -Chih Lee
Papers

Abstract

The effect of ultrasonic waves on the particle size and distribution of precipitated crystals from a slowly cooled supersaturated solution of ammonium aluminium sulphate hydrate was investigated. It was found that ultrasonic irradiation greatly promoted the homogeneity in particle sizes of the crystals precipitated. Average particle sizes of both the mechanical stirred and the ultrasonically treated samples did not change much if the initial solute concentration was beyond the saturation solubility of the solution. The higher acoustic intensity of the higher frequency ultrasonic transducer resulted in a larger average particle size in the recrystallization process.

Keywords

Recrystallization Average Particle Size Initial Solute Ultrasonic Wave Ultrasonic Irradiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    D. A. Porter andK. E. Easterling, in “Phase Transformation in Metals and Alloys” (van Nostrand Reinhold, 1981) p. 189.Google Scholar

Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • Naoya Enomoto
    • 1
  • Tae -Hyun Sung
    • 1
  • Zenbe -E Nakagawa
    • 1
  • Shen -Chih Lee
    • 2
  1. 1.Research Laboratory of Engineering MaterialsTokyo Institute of TechnologyYokohamaJapan
  2. 2.Department of Materials EngineeringTatung Institute of TechnologyTaipeiTaiwan

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