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OALib Journal期刊
ISSN: 2333-9721
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RELATION OF STRUCTURE STABILITY AND DEBYE TEMPERATURE TO CRYSTAL SIZE OF NANOMETER SIZED TiO_2 POWDERS
纳米 TiO_2结构稳定性和德拜温度与粒度的关系

Keywords: nanometer sized powder,anatase TiO_2,Debye temperature,crystal size
纳米粉末
,锐钛矿,TiO_2,德拜温度,粒度

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Abstract:

Anatase structure TiO_2 powders of various crystal size were prepared bySol-Gel method.Single phase anatase structure was obtained for the material with the particlesize less than 70nm.Lattice parameter and Debye Temperature were measured by X-raydiffraction method.The results show that both the lattice parameter and Debye temperaturesquare are inversely proportional to the crystal size of the powders.This may be explained bythe surface tension effect of the nanocrystal.

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