Agglomerate and Particle Size Effects on Sintering Yttria‐Stabilized Zirconia
- 1 January 1981
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 64 (1) , 19-22
- https://doi.org/10.1111/j.1151-2916.1981.tb09552.x
Abstract
The initial‐, intermediate‐, and final‐stage sintering of fine crystallite yttria‐stabilized zirconia was studied. Experiments were conducted on powder lots of differing agglomerate size and one specially prepared agglomerate‐free powder. Initial‐stage sintering kinetics were compared with a sintering study on larger crystallite size calcia‐stabilized zirconia to access the Herring scaling law. It was found that agglomerates limit attainable green density, interfere with the development of microstructure, impede initial‐stage sintering kinetics, and limit the potential benefit of fine crystallites on final‐stage sintering. An gglomerate free powder centrifuge‐cast to 74% green density was sintered to 99.5% of theoretical density in a 1 h 1100°C cycle, which is ∼300°C lower than necessary for an agglomerated but equal crystallite size powder.Keywords
This publication has 8 references indexed in Scilit:
- Explicit L2 inequalities for parabolic and pseudoparabolic equations with Neumann boundary conditionsInternational Journal of Mathematics and Mathematical Sciences, 1977
- Ultrafine oxide powders prepared by electron beam evaporationJournal of Materials Science, 1974
- Fine Particulates to Ultrafine-Grain CeramicsPublished by Springer Nature ,1970
- Cubic Phase Stabilization of Translucent Yttria‐Zirconia at Very Low TemperaturesJournal of the American Ceramic Society, 1967
- Cationic Self-Diffusion in Calcia-Stabilized ZirconiaJournal of the American Ceramic Society, 1966
- Mechanical Packing of Spherical ParticlesJournal of the American Ceramic Society, 1961
- Initial Sintering of Alumina and HematiteJournal of the American Ceramic Society, 1958
- Effect of Change of Scale on Sintering PhenomenaJournal of Applied Physics, 1950