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|Title:||Microstructure, crystallization and shape memory behavior of titania and yttria co-doped zirconia||Authors:||Zeng, Xiao Mei
Schuh, Christopher A.
Gan, Chee Lip
Shape memory effect
|Issue Date:||2015||Source:||Zeng, X. M., Du, Z., Schuh, C. A., Tamura, N., & Gan, C. L. (2016). Microstructure, crystallization and shape memory behavior of titania and yttria co-doped zirconia. Journal of the European Ceramic Society, 36(5), 1277-1283.||Series/Report no.:||Journal of the European Ceramic Society||Abstract:||Small volume zirconia ceramics with few or no grain boundaries have been demonstrated recently to exhibit the shape memory effect. To explore the shape memory properties of yttria doped zirconia (YDZ), it is desirable to develop large, microscale grains, instead of submicron grains that result from typical processing of YDZ. In this work, we have successfully produced single crystal micro-pillars from microscale grains encouraged by the addition of titania during processing. Titania has been doped into YDZ ceramics and its effect on the grain growth, crystallization and microscale elemental distribution of the ceramics have been systematically studied. With 5 mol% titania doping, the grain size can be increased up to ∼4 μm, while retaining a large quantity of the desired tetragonal phase of zirconia. Micro-pillars machined from tetragonal grains exhibit the expected shape memory effects where pillars made from titania-free YDZ would not.||URI:||https://hdl.handle.net/10356/80329
|ISSN:||0955-2219||DOI:||10.1016/j.jeurceramsoc.2015.11.042||Rights:||© 2015 Elsevier.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MSE Journal Articles|
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