Comparison between microwave and conventional sintering on the properties and microstructural evolution of tetragonal zirconia |
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| Authors: | S. Ramesh N. Zulkifli C.Y. Tan Y.H. Wong F. Tarlochan S. Ramesh W.D. Teng I. Sopyan L.T. Bang Ahmed A.D. Sarhan |
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| Affiliation: | 1. Center of Advanced Manufacturing and Material Processing, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Mechanical and Industrial Engineering Department, College of Engineering, Qatar University, Doha, Qatar;3. Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;4. Ceramics Technology Group, SIRIM Berhad, Shah Alam 40911, Malaysia;5. Department of Manufacturing and Materials Engineering, International Islamic University Malaysia, 50728, Kuala Lumpur, Malaysia;6. Department of Biomaterials, Faculty of Dental Science, Kyushu University, Fukuoka, Japan;g. Mechanical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia |
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| Abstract: | In this research, the comparison between microwave sintering and conventional sintering on the mechanical properties and microstructural evolution of 3?mol% yttria-stabilised zirconia were studied. Green bodies were compacted and sintered at various temperatures ranging from 1200?°C to 1500?°C. The results showed that microwave assisted sintering was beneficial in enhancing the densification and mechanical properties of zirconia, particularly when sintered at 1200?°C. It was revealed that as the sintering temperature was increased to 1400?°C and beyond, the grain size and mechanical properties for both microwave- and conventional-sintered ceramics were comparable thus suggesting that the sintering temperature where densification mechanism was activated, grain size was strongly influenced by the sintering temperature and not the sintering mode. |
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| Keywords: | Microwave sintering Conventional sintering Y-TZP Mechanical properties Microstructure evolution |
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