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ZrO2 spherical nanometer powders containing 3.5 mol% Y2O3 have been prepared via the coupling route of water/oil (W/O) emulsion with dimethyl oxalate homogenous precipitation. ZrO2 powders and their precursor powders have been characterized by XRD, TEM and SEM. According to the XRD result, phase volume fractions of powders were calculated by comparing the peaks’ intensities of spectrum. Furthermore, phase crystal lattice constants were obtained using crystal interplanar spacing formula and Bragg equation. With these results, the theoretical density of powders was analyzed. Finally, powders’ spherical degree was revealed via the method of comparison between theoretical density and actual density.


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Theoretical calculation and analysis of ZrO2 spherical nanometer powders

Show Author's information Ying CHANGaHuihu WANGbQinbiao ZHUaPing LUObShijie DONG*,b( )
Department of Materials, School of Chemical and Environment Engineering, Hubei University of Technology, Wuhan 430068, China
School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China

Abstract

ZrO2 spherical nanometer powders containing 3.5 mol% Y2O3 have been prepared via the coupling route of water/oil (W/O) emulsion with dimethyl oxalate homogenous precipitation. ZrO2 powders and their precursor powders have been characterized by XRD, TEM and SEM. According to the XRD result, phase volume fractions of powders were calculated by comparing the peaks’ intensities of spectrum. Furthermore, phase crystal lattice constants were obtained using crystal interplanar spacing formula and Bragg equation. With these results, the theoretical density of powders was analyzed. Finally, powders’ spherical degree was revealed via the method of comparison between theoretical density and actual density.

Keywords:

spherical, zirconia nanometer powders, theoretical calculation, density
Received: 09 October 2012 Revised: 22 December 2012 Accepted: 25 December 2012 Published: 06 April 2013 Issue date: March 2013
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Publication history

Received: 09 October 2012
Revised: 22 December 2012
Accepted: 25 December 2012
Published: 06 April 2013
Issue date: March 2013

Copyright

© The author(s) 2013

Acknowledgements

The authors acknowledge the support of the National Natural Science Foundation of China (Grant Nos. 51004046 and 51075129), the State Key Development Program for Basic Research of China (Project No. 2010CB635107), and the National Natural Science Foundation of Hubei Province of China (Project No. 2010CDB05806).

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