Synthesis and characteristics of zirconia fine powders from organic zirconium complexes

Article abstract of DOI:10.1007/BF03372215

An organic zirconium complex was synthesized from concentrated ZrOCl₂ solution and an organic complex which was a mixture of β-glycosyl urea (Schiff's base) and urea. Homogeneous hydrolysis and controlled polymerization of zirconium tetramers was accomplished by heating the solution to boiling. Fine ZrO₂ and yttrium- or magnesium-stabilized ZrO₂ powders were prepared by dehydration and pyrolysis in air. The powders are composed of 0.1 μm particles and were sintered to an above 98% density ceramic with 0.25-0.30 μm grain size.