The control of shape and compaction characteristics of dry Ba-W-Ti-O nanopowders by the powerful ultrasonic action

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The compressibility of the dry BaTi4O9+BaWO 4 (BWTO) and ZrO2-3%Y2O3 (TZ-3YS) nanopowders compacted by the ordinary uniaxial pressing, under powerful ultrasonic action (PUA) and by the novel collector method have been investigated. The coefficients of the logarithmic compaction equation in dimensionless form were determined from the experimental compaction diagrams. The BWTO nanopowder had low elastic component of these curves and low springback. The samples of parallelepiped shape (14mm × 9mm × 2mm) were pressed. To decrease the shape distortion of sintered ceramics the green density difference along compaction axis was investigated. It was shown the possibility of green density difference reduction using PUA and collector method at optimal conditions. The uniform distributions of density in volume of the green compacts were achieved at compaction pressure of 640 MPa and power of ultrasonic generator of 2 kW at resonance frequency of 21 kHz.

Original languageEnglish
Title of host publicationProceeding - The 1st International Forum On Strategic Technology "e-Vehicle Technology", IFOST 2006
Pages178-181
Number of pages4
DOIs
Publication statusPublished - 2006
Event1st International Forum On Strategic Technology "e-Vehicle Technology", IFOST 2006 - Ulsan, Korea, Republic of
Duration: 18 Oct 200620 Oct 2006

Other

Other1st International Forum On Strategic Technology "e-Vehicle Technology", IFOST 2006
CountryKorea, Republic of
CityUlsan
Period18.10.0620.10.06

ASJC Scopus subject areas

  • Artificial Intelligence
  • Automotive Engineering

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