Mechanical wet-milling and subsequent consolidationof ultra-fine Al2O3-(ZrO2+3%Y2O3) bioceramics by usinghigh-frequency induction heat sintering
来源期刊:中国有色金属学报(英文版)2007年第1期
论文作者:Khalil Abdelrazek KHALIL Sug Won KIM
文章页码:21 - 26
Key words:bioceramic; alumina; zirconia, mechanical wet-milling, sintering
Abstract: Alumina/zirconia composites were synthesized by wet-milling technique and rapid consolidation with high frequency induction heat sintering(HFIHS). The starting materials were a mixture of alumina micro-powder (80%, volume fraction) and 3YSZ nano-powders (20%). The mixtures were optimized for good sintering behaviors and mechanical properties. Nano-crystalline grains are obtained after 24 h milling. The nano-structured powder compacts are then processed to full density at different temperatures by HFIHS. Effects of temperature on the mechanical and microstructure properties were studied. Al2O3-3YSZ composites with higher mechanical properties and small grain size are successfully developed at relatively low temperatures through this technique.
基金信息:by the Korean Research Foundation Grant Funded by Korea Government (MOEHRD)