Kini, Maya and Chokshi, Atul H (2010) Creep in TiO2 doped Zirconia: Implications for high strain rate superplasticity. In: 15th International Conference on the Strength of Materials (ICSMA 15), AUG 16-21, 2009 , Dresden, GERMANY.
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In ceramics, dopants offer the possibility of higher creep rates by enhancing diffusion. The present study examines the potential for high strain rate superplasticity in a TiO2 doped zirconia, by conducting creep experiments together with microstructural characterization. It is shown that both pure and doped zirconia exhibit transitions in creep behaviour from Coble diffusion creep with n similar to 1 to an interface controlled process with n similar to 2. Doping with TiO2 enhances the creep rate by over an order of magnitude. There is evidence of substantial grain boundary sliding, consistent with diffusion creep.
|Item Type:||Conference Paper|
|Additional Information:||Copyright of this article belongs to IOP Publishing ltd.|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||25 Mar 2011 06:26|
|Last Modified:||25 Mar 2011 06:26|
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