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http://dx.doi.org/10.6111/JKCGCT.2010.20.5.197

Preparation and characterization of ZnWO4 nanocrystallines and single crystals  

Lim, Chang-Sung (Department of Advanced Materials Science & Engineering, Hanseo University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.20, no.5, 2010 , pp. 197-201 More about this Journal
Abstract
$ZnWO_4$ nanocrystallines were prepared from polymeric complex method using microwave irradiation. The average nanocrystalline sizes were 18~25 nm showing an ordinary tendency to increase with the temperatures from 400 to $600^{\circ}C$. Bulk type single crystals of $ZnWO_4$ were grown successfully in the [100], [010] and [001] directions using the Czochralski method. The effect of the growth parameters, such as the rotation speed, pulling rate and diameter of the grown crystals, were examined. The hardness, thermal expansion coefficients and dielectric constants of the crystals were evaluated.
Keywords
Preparation; Characterization; $ZnWO_4$; Crystal growth; CZ method;
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