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Hydrodynamics of Moulding of Ceramic Articles From Beryllium Oxide Using Ultrasonic Activation

[+] Author Affiliations
U. K. Zhapbasbayev, A. Kaltayev

Al-Farabi Kazakh National University

G. D. Bitsoev

East Kazakhstan Technical University

S. K. Turnayev

Altreid, Ltd.

Paper No. IMECE2005-79843, pp. 1301-1307; 7 pages
doi:10.1115/IMECE2005-79843
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Manufacturing Engineering and Materials Handling, Parts A and B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Manufacturing Engineering Division and Materials Handling Division
  • ISBN: 0-7918-4223-1 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Moulding of thermoplastic slurry using ultrasound activation is studied experimentally. Thermoplastic slurry represents a high-viscous suspense of beryllium oxide powder and molten paraffin (with surfactant species) as a binder. Experimental results of slurry products reveal its low castability at minimal binder content. Thus, the actual problem is to increase slurry castability by ultrasound at minimal binder content. The role of bubble cavitations in slurry degassing process is discussed and parameters of ultrasound radiator necessary for cavitation onset in water are found. Consolidation of slurry in wire die is simulated, slurry velocity and temperature profiles are found and analyzed.

Copyright © 2005 by ASME

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