The method further includes forming a second feedstock by removing at least a portion of {HEAD ~ the byproduct} of {TAIL ~ the first hydrothermal treatment} and subjecting the second feedstock to a second hydrothermal treatment to form a zirconia sol that contains the zirconia particles 
The method further includes forming a second feedstock by removing at least a portion of { HEAD ~ the byproduct } of { TAIL ~ the first hydrothermal treatment } and subjecting the second feedstock to a second hydrothermal treatment to form a zirconia sol that contains the zirconia particles
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH