High density nano-grained Gd2Zr2O7 ceramic prepared by combined cold and microwave sintering |
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| Affiliation: | 1. College of Physics, Sichuan University, Chengdu, 610064, China;2. Institute for Advanced Study, Chengdu University, Chengdu, 610106, China;3. School of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China;4. Key Laboratory of Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu, 610064, China;5. Key Laboratory of High Density Physics of Ministry of Eduction, Sichuan University, Chengdu, 610064, China |
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| Abstract: | In this study, nano-grained Gd2Zr2O7 (NGZO) ceramic with a high relative density was prepared by a novel cold sintering process (CSP) assisted by microwave sintering (CSP-MS). The CSP with water as the liquid phase at 280 °C yielded nano-grained ceramic with a relative density of 71.5%. NGZO with a high relative density of 97.1% and average grain size of 73 nm was obtained by subsequent microwave sintering of the cold-sintered sample at 1300 °C. Therefore, CSP-MS is feasible in preparing dense NGZO ceramics with small grain sizes at relatively low sintering temperatures. |
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| Keywords: | Nano-grained ceramic Cold sintering process Microwave sintering |
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