Synthesis and characteristics of nanocrystalline YSZ powder by polyethylene glycol assisted coprecipitation combined with azeotropic-distillation process and its electrical conductivity
Synthesis and characteristics of nanocrystalline YSZ powder by polyethylene glycol assisted coprecipitation combined with azeotropic-distillation process and its electrical conductivity
复制标题
聚乙二醇辅助共沉淀联合共沸蒸馏法制备纳米晶YSZ粉体、性能及其电导率
DOI：
10.1016/j.ceramint.2011.05.055
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发表时间：
2011-12
影响因子：
5.2
通讯作者：
Li, Zhong-Jun
中科院分区：
文献类型：
--
作者：
Yao, Hong-Chang;Wang, Xian-Wei;Dong, Hao;Pei, Rui-Rui;Wang, Jian-She;Li, Zhong-Jun
采用聚乙二醇(PEG1540)辅助共沉淀与共沸蒸馏干燥相结合的方法，制备了纳米级8mol%Yttria稳定的氧化锆(YSZ)粉末。研究了聚乙二醇共沸蒸馏和共沸蒸馏对YSZ的形貌和粒径的影响。热重和X射线衍射结果表明，共沸蒸馏可以降低YSZ相的形成温度。X-射线衍射图表明，随着焙烧温度的升高，YSZ粉末的微晶尺寸增大，这与透射电子显微镜的观察结果一致。研究了800℃焙烧YSZ粉末制备的球团的烧结行为和离子导电性。当烧结温度为≥1400°C时，可获得99%以上的相对密度。交流阻抗谱测试结果表明，1450℃烧结的YSZ球团在800℃空气中的离子电导率为0.0726Scm−1。研究结果表明，聚乙二醇共沉淀法与共沸蒸馏干燥法相结合是一种合成具有高烧结性和良好离子导电性的氧化钛稳定氧化锆粉的替代方法。
Nanoscale 8 mol% yttria stabilized zirconia (YSZ) powders were prepared by polyethylene glycol (PEG-1540) assisted coprecipitation coupling with azeotropic distillation drying process. The role of PEG and azeotropic-distillation on the morphology and particle size of YSZ was studied. Thermogravimetry and X-ray diffraction results showed that azeotropic-distillation could reduce the formation temperature of YSZ phase. X-ray patterns of the YSZ powders revealed that the crystallite size of the powders increases with increasing calcination temperature, which is consistent with transmission electron microscopy observations. The sintering behavior and the ionic conductivity of the pellets prepared from YSZ powders calcined at 800°C were also studied. At sintering temperatures ≥1400°C, more than 99% of the relative density was obtained. The alternating-current impedance spectroscopy results showed that the YSZ pellet sintered at 1450°C has ionic conductivity of 0.0726Scm−1at 800°C in air. The present work results have indicated that the PEG assisted coprecipitation combined with azeotropic-distillation drying process is an alternative method to synthesize yttria stabilized zirconia powders with a high sinterability and a good ionic conductivity.
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影响因子：
4.9
作者：
P. Jin-hua;Sun Kening;Zhang Naiqing;X. Shen;Zhou De-rui
通讯作者：
P. Jin-hua;Sun Kening;Zhang Naiqing;X. Shen;Zhou De-rui
DOI：
10.1016/j.mseb.2006.10.005
发表时间：
2007-02
影响因子：
3.6
作者：
C. Zhang;Chang-jiu Li;G. Zhang;X. Ning;Cheng-Xin Li;H. Liao;C. Coddet
通讯作者：
C. Zhang;Chang-jiu Li;G. Zhang;X. Ning;Cheng-Xin Li;H. Liao;C. Coddet
影响因子：
6.3
作者：
S. Yao;Z. Xie
通讯作者：
S. Yao;Z. Xie
影响因子：
3.2
作者：
H. Yao;Jianshe Wang;Dong Hu;Jing-feng Li;Xiaojuan Lu;Zhongjun Li
通讯作者：
H. Yao;Jianshe Wang;Dong Hu;Jing-feng Li;Xiaojuan Lu;Zhongjun Li
DOI：
10.1016/j.jeurceramsoc.2005.04.021
发表时间：
2006-01-01
影响因子：
5.7
作者：
Hua, Zile;Wang, Xin M.;Shi, Jianlin
通讯作者：
Shi, Jianlin