Title :
Influence of the shape factor on efficiency of the green compact ultrasonic compacting and properties of sintered zirconia ceramics
Author :
Khasanov, O.L. ; Lee, Jae-Shin ; Pokholkov, Yu.P. ; Dvilis, E.S. ; Sokolov, V.M. ; An, Byung-Gi
Author_Institution :
R&D Centre, Tomsk Polytech. Inst., Russia
Abstract :
The properties of green compacts and ceramics from ZrO2-Y2O3 nanopowder compacted under ultrasonic action (power of 0.5; 1; 2; 3 kW) were studied. The shape factor of the green compacts (the ratio of height to diameter) was h/D=0.05 and 0.37. Phase constitution, grain structure, density and shrinkage, of ceramics sintered at 1650°C from the green compacts with different h/D, were investigated. The possibility for improvement of mechanical properties of advanced ceramics by using optimum regimes of ultrasonic compaction was shown
Keywords :
ceramics; densification; grain size; nanostructured materials; powder technology; sintering; ultrasonic effects; yttrium compounds; zirconium compounds; 0.5 to 3 kW; ZrO2-Y2O3; advanced ceramics; compacting efficiency; density; grain size; grain structure; green compact ultrasonic compacting; height to diameter ratio; improved mechanical properties; optimum compaction regimes; phase constitution; shape factor influence; shrinkage; sintered zirconia ceramics; static uniaxial moulding; tetragonal zirconia polycrystals; zirconia-yttria nanopowder; Ceramics; Compaction; Constitution; Magnetic resonance; Manufacturing; Mechanical factors; Production; Research and development; Shape; Ultrasonic imaging;
Conference_Titel :
Science and Technology, 2000. KORUS 2000. Proceedings. The 4th Korea-Russia International Symposium on
Conference_Location :
Ulsan
Print_ISBN :
0-7803-6486-4
DOI :
10.1109/KORUS.2000.866107
