Leng D.,Kunming University of Science and Technology |
Leng D.,Key Laboratory of Advance Materials in Rare and Precious and Nonferrous Metals |
Leng D.,Laboratory of Advance Materials of Yunnan Province |
Yi J.-H.,Kunming University of Science and Technology |
And 20 more authors.
Dongbei Daxue Xuebao/Journal of Northeastern University | Year: 2012
The nanometer ITO powder was prepared by chemical coprecipitation with In and Sn hydrochloride as raw materials, and the grain growth situations of ITO nanoparticles calcined at different temperature were investigated. The structural properties of the samples were characterized by XRD and TEM. The results indicated that the grain size increases with temperature. At the beginning of calcination, the grain growth rate is large, while the growth rate slows down with increasing the particles diffusion and the grain growth resistance. ITO grain growth dynamics showed that the grain growth index and activation energy increase with temperature. The average grain growth index is 2.3 and the average grain growth activation energy is 41.45kJ·mol -1.