Synthesis and characteristics of zirconia fine powders from organic zirconium complexes
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 pyrolisis in air. The powders obtained are composed of 0.1 µm particles and were sintered to an above 98% density ceramic with 0.25–0.30 µm grain size.
KeywordsConium Complex Attrition Milling Interparticle Bond Hard Agglomerate Excess Urea
Unable to display preview. Download preview PDF.
- 2.K. TSUKUMA, Y. KUBOTA and T. TSUKIDATE, in “Advances in Ceramics” Vol. 12, “Science and Technology of Zirconia II”, edited by N. Claussen et al. (Americal Ceramics Society, Columbus, Ohio, 1983) p. 382.Google Scholar
- 4.B. FEGLEY, Jr., P. WHITE and H. K. BOWEN, Ceram. Bull. 64 (1985) 1115.Google Scholar
- 5.M. A. C. G. VAN DE GRAAF and A. J. BURG-GRAAF, in “Advances in Ceramics” Vol. 12, “Science and Technology of Zirconia II”, edited by N. Claussen et al. (American Ceramics Society, Columbus, Ohio, 1983) p. 744.Google Scholar
- 8.H. P. KLUG and L. E. ALEXANDER, “X-Ray Diffraction Procedures” (Wiley, New York, 1954) Ch. 9.Google Scholar
- 10.J. E. BLENDELL, H. K. BOWEN and R. L. COBLE, Ceram. Bull. 63 (1984) 797.Google Scholar