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High-frequency Induction Heating Sintering of Hydroxyapatite-(ZrO2+3%Mol Y2O3) Bioceramics
Khalil Khalil Abdel-razek,Kim Sug-Won 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
In this study, hydroxyapatite (HAp) and hydroxyapatite-yttria stabilized zirconia (HAp-3YSZ) with 20 vol. %- (ZrO2+3 %mol Y2O3) nanopowders were consolidated very rapidly to full density by High-frequency induction heat sintering (HFIHS). Effects of temperature and the addition of 3YSZ on the toughness, hardness and microstructure properties have been studied. 3YSZ second phase toughening HAp composites with higher toughness were successfully developed at relatively low temperatures through this technique. Compared with hardness and toughness obtained for pure HAp, the hardness and toughness for HAp-20vol. % 3YSZ were much higher.
Synthesis and Densification of Nanostructured Bioceramics by High-Frequency Induction Heat Sintering
Kim Sug-Won,Khalil Khalil Abdel-razek 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Nanostructured Alumina - 20 vol% 3YSZ composites powder were synthesized by wet-milling technique. The starting materials were a mixture of Alumina micro-powder and 3YSZ nano-powders. Nano-crystalline grains were obtained after 24 h milling time. The nano-structured powder compacts were then processed to full density at different temperatures by high-frequency induction heat sintering (HFIHS). Effects of temperature on the mechanical and microstructure properties have been studied. composites with higher mechanical properties and small grain size were successfully developed at relatively low temperatures through this technique.