Densification and Phase Transformation During Pressureless Sintering of Nanocrystalline ZrO2–Y2O3–CuO Ternary System |
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| Authors: | Yongsheng Zhang Litian Hu HaoKun Li Jianmin Chen |
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| Affiliation: | State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
Graduate School, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | ZrO2–Y2O3–CuO nanocrystalline powders have been synthesized using a chemical coprecipitation method. Nano-powders were compacted uniaxially and densified in a muffle furnace. Densification studies show that the presence of CuO accelerates the densification process of ZrO2(3Y). A fully dense (>96%) pellet of ZrO2(3Y)/5 mol% CuO was obtained after sintering at 900°C, with a very small grain size of 44 nm calculated by X-ray line broadening. |
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