摘要

Nanocrystalline ZrO2 powder was prepared through a chemical route via a reaction between a soluble salt with an organic template in various ratios at a carbonization temperature of 200 degrees C. The homogenization of the nanopowder was assisted by milling the charcoal precursor in a non polar solvent for 24 hours, followed by calcining at 800 degrees C and 1100 degrees C. X-Ray diffraction (XRD) analysis results show that zirconia nanopowder produced has crystallite sizes of about 26-31 nm and 46-50 nm whose major crystal phase is m-ZrO2 for calcinations at 800 and 1100 degrees C, respectively. Increasing the organic template concentration reduces the particle and crystallite size, while the elevation of the calcination temperature enlarges the particle and crystallite size.

  • 出版日期2012