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Fabrication of complex-shaped Y-TZP/Al2O3 nanocomposites

✍ Scribed by Yongsheng Zhang; Litian Hu; Jianmin Chen; Weimin Liu

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
809 KB
Volume
209
Category
Article
ISSN
0924-0136

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✦ Synopsis

Gelcasting is a very useful technique for producing ceramic green parts with complex shapes. Although it has been successfully applied to ceramic systems consisting of micron size powders, there is little report on gelcasting of ceramics containing nanoparticles. In this work, ceramic system with nano-size ZrO 2 -Y 2 O 3 -A1 2 O 3 powders (30-40 nm in size) have been successfully gelcast to form complex-shaped parts. After pressureless-sintering, the Y-TZP/Al 2 O 3 nanocomposites with an average grain size of 220 nm are successfully fabricated.

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