| Mechanical wet-milling and subsequent consolidation of ultra-fine Al2O3-（ZrO2＋3%Y2O3） bioceramics by using high-frequency induction heat sintering |
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| 作者姓名： | Khalil Abdelrazek KHALIL Sug Won KIM |
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| 作者单位： | Division of Advanced Materials Engineering RIAMD Chonbuk National University，Division of Advanced Materials Engineering RIAMD Chonbuk National University，Jeonju 561-756 South Korea，Jeonju 561-756 South Korea |
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| 基金项目： | Project（K.RF-2005-210-D00042） supported by the Korean Research Foundation Grant Funded by Korea Government （M0EHRD） |
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| 摘 要： | 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.
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| 关 键 词： | 生物陶瓷 烧结工艺 高频诱导 微观结构 机械性能 |
| 收稿时间： | 2006-03-17 |
| 修稿时间： | 2006-09-13 |
Mechanical wet-milling and subsequent consolidation of ultra-fine Al2O3-(ZrO2+3%Y2O3) bioceramics by using high-frequency induction heat sintering |
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| Khalil Abdelrazek KHALIL Sug Won KIM.Mechanical wet-milling and subsequent consolidation of ultra-fine Al2O3-(ZrO2+3%Y2O3) bioceramics by using high-frequency induction heat sintering[J].Transactions of Nonferrous Metals Society of China,2007,17(1):21-26. |
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| Authors: | Khalil Abdelrazek KHALIL Sug Won KIM |
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| Affiliation: | Division of Advanced Materials Engineering, RIAMD, Chonbuk National University, Jeonju 561-756, South Korea |
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| 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. |
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| Keywords: | bioceramic alumina zirconia mechanical wet-milling sintering |
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