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Synthesis of nanocrystalline YSZ (ZrO2–8Y2O3) powder by polymerized complex method

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Title: Synthesis of nanocrystalline YSZ (ZrO2–8Y2O3) powder by polymerized complex method
Authors: Farhikhteh, Shayan1, Maghsoudipour, Amir1, Raissi, Babak b-raissi@merc.ac.ir
Source: Journal of Alloys & Compounds. Feb2010, Vol. 491 Issue 1/2, p402-405. 4p.
Abstract: Abstract: In this study nanocrystalline powders of yttria-stabilized zirconia (ZrO2–8Y2O3) have been synthesized through “polymerized complex method”. Zirconium chloride, yttrium nitrate, citric acid and ethylene glycol were polymerized at 80°C to produce a gel-like mass in which metallic ions were uniformly distributed. During the thermal treatment of dried gel, nanocrystalline powder was formed at 450°C and 650°C for 2h. Thermal reactions and crystalline phase formation of the dried gel were investigated through thermal analysis and X-ray diffraction analysis, respectively. The results of thermal analysis and XRD showed the formation of nanocrystalline powder at less than 600°C. Chemical bonding of the dried gel was investigated by Fourier transform infrared spectroscopy analysis. Morphology of powder calcined at 650°C was analyzed by scanning electron microscope. Yttria-stabilized zirconia powders with the mean crystallite size of 6nm were prepared successfully by this method. [Copyright &y& Elsevier]
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Database: Engineering Source
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Abstract:Abstract: In this study nanocrystalline powders of yttria-stabilized zirconia (ZrO2–8Y2O3) have been synthesized through “polymerized complex method”. Zirconium chloride, yttrium nitrate, citric acid and ethylene glycol were polymerized at 80°C to produce a gel-like mass in which metallic ions were uniformly distributed. During the thermal treatment of dried gel, nanocrystalline powder was formed at 450°C and 650°C for 2h. Thermal reactions and crystalline phase formation of the dried gel were investigated through thermal analysis and X-ray diffraction analysis, respectively. The results of thermal analysis and XRD showed the formation of nanocrystalline powder at less than 600°C. Chemical bonding of the dried gel was investigated by Fourier transform infrared spectroscopy analysis. Morphology of powder calcined at 650°C was analyzed by scanning electron microscope. Yttria-stabilized zirconia powders with the mean crystallite size of 6nm were prepared successfully by this method. [Copyright &y& Elsevier]
ISSN:09258388
DOI:10.1016/j.jallcom.2009.10.196