Determination of dry compaction parameters of ceramic nanopowder and influence of ultrasound action on them

Determination of dry compaction parameters of ceramic nanopowder and influence of ultrasound action on them

The conditions of ceramic nanopowder compaction essentially influence the quality and properties of sintered ceramics. Methods for determination of important parameters of nanopowder dry compaction with regard to powder body elastic properties are presented for the following parameters: powder body...

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Bibliographic Details
Published in:Proceedings KORUS 2000. The 4th Korea-Russia International Symposium On Science and Technology Vol. 3; pp. 257 - 262 vol. 3
Main Authors: Khasanov, O.L., Dvilis, E.S., Pomhoikov, Yu.P., Sokolov, V.M.
Format: Conference Proceeding
Language:English
Published: IEEE 2000
Subjects:
Ceramics
Compaction
Elasticity
Friction
Poisson equations
Powders
Pressure measurement
Research and development
Shape
Ultrasonic imaging
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Summary:The conditions of ceramic nanopowder compaction essentially influence the quality and properties of sintered ceramics. Methods for determination of important parameters of nanopowder dry compaction with regard to powder body elastic properties are presented for the following parameters: powder body elastic modulus and sound velocity; Poisson ratio; coefficients of internal friction, wall friction, lateral pressure; elastic aftereffect in height and diameter; density uniformity; green compact quality parameter. The influence of ultrasound action of different power on these characteristics is shown. The experimental dependences of the compaction parameters of ZrO/sub 2/-Y/sub 2/O/sub 3/ nanopowder on compaction pressure, ultrasound power are analysed. Conclusions about the effective range of nanopowder ultrasonic compaction are obtained.
ISBN:0780364864
9780780364868
DOI:10.1109/KORUS.2000.866095