350 rub
Journal №1 for 2014 г.
Article in number:
Sintering of zirconia-based ultrafine powders compacted by static and magnetic pulsed pressing
Keywords: densification powders nanoceramics compacts density porosity microhardness magnetic pulse compression compacting
Authors:
T.S. Frangulyan - Dr.Sc. (Phys.-Math.), Leading Research Scientist. Е-mail: ghyngazov@tpu.ru
S.A. Gyngazov - Dr.Sc. (Eng.), Senior Research Scientist. Е-mail: ghyngazov@tpu.ru
S.A. Kurdukov - Post-graduant Student, MGTU MIREA. Е-mail: lavrov@mirea.ru
Abstract:
A comparative analysis of press samples densification processes of ultrafine powders produced by static, bilateral and radial magnetic pulse compression to obtain high quality nanoceramics are performed. The condensation kinetics of samples prepared by different techniques during heating and isothermal holding is discussed. Ceramics sintered by magnetic pulse compression demonstrates higher shrinkage during heating in contrast to compacts obtained by static pressing. The bilateral magnetic pulse mode of the compression leads to an increase of the compacts density, a decrease in porosity and as a result to the nanoceramics microhardness enhancement compared to ceramics prepared by static pressing. For ZrO2-Al2O3 mixture powder composition an intensification of the high-density composite compacts sintering is observed.
Pages: 29-35
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