An investigation on the solid-state reactions in CaCu3Ti4O12-ZnNb2O6 system
An investigation on the solid-state reactions in CaCu3Ti4O12-ZnNb2O6 system
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DOI：
10.1016/j.materresbull.2007.08.018
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发表时间：
2008-08
影响因子：
5.4
通讯作者：
G. Du;Wang Li;Y. Fu;N. Chen;Chuanqiang Yin;Ming-ming Yan
中科院分区：
文献类型：
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作者：
G. Du;Wang Li;Y. Fu;N. Chen;Chuanqiang Yin;Ming-ming Yan
We investigated the solid-state reactions between CaCu3Ti4O12and ZnNb2O6oxides with a molar ratio of 1:1 in air at temperatures from 600 to 1000°C. Solid-state reactions between CaCu3Ti4O12and ZnNb2O6occurred readily around 900°C and above. The reaction products were Cu0.5Ti0.5NbO4, CaNb2O6, and Zn2TiO4(and/or ZnCuTiO4). A substance having a set of X-ray diffraction peaks similar to that of CaCu3Ti4O12was observed, and it is believed to be a solid solution of CaCu3Ti4O12formed by the partial substitution of Nb5+for Ti4+ions. The lattice constant of this solid solution is greater than that of CaCu3Ti4O12. The reaction behaviors of CaCu3Ti4O12–Nb2O5system were also studied in order to better understand the reactions of the CaCu3Ti4O12–ZnNb2O6system. In addition to the formation of solid solution between CaCu3Ti4O12and Nb2O5, solid-state reactions between CaCu3Ti4O12and Nb2O5also occurred simultaneously.
