Studies on SnO2–ZrO2 solid solution

The solubilities of Sn in ZrO2 and Zr in SnO2 are investigated. The X-ray diffraction (XRD) studies show the solubility limit for Sn in zirconia to be 20 mol% whereas Zr in SnO2 is around 25 mol%. All the compositions were prepared by the coprecipitation method. The average particle size for a typical composition was 25 nm as revealed by the transmission electron microscopy (TEM).