Colloidal Stability of Zirconia-Doped Yttria–Silica Binary Aqueous Suspensions |
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| Authors: | Mehrdad Yasrebi Mark E. Springgate Douglas G. Nikolas William Kemp David H. Sturgis John M. McCarthy |
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| Affiliation: | Precision Castparts Corp., Portland, Oregon 97206;Department of Materials Science and Engineering, Oregon Graduate Institute, Beaverton, Oregon 97006 |
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| Abstract: | Minor amounts of zirconia (up to 5 wt%) were fused with yttria and their effect on water solubility of yttria, and colloidal stability of yttria–silica aqueous binary suspensions, was examined. It is shown that incorporated zirconia reduces the water sensitivity of yttria while maintaining the hydrophilic nature of the surface. This fusion procedure makes yttria particles suitable for production of longlasting yttria–silica aqueous suspensions. |
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