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The Effect of Some Factors on Ms and Sme in Ce-TZP Ceramics

  • Bohong Jiang (a1), Jinbiao Tu (a1), T.Y. Hsu (a1), Zuyao Xu (a1), Xuan Qi (a1), Xiuhua Zheng (a2) and Jiaxiang Zhong (a2)...

Abstract

As known to all,shape memory behaviour has been observed in a variety of metallic alloys. This phenomenon, however, is not only observed in that field but also in other materials recently, such as in polymers,intermetallic compounds and ceramics, especially in zirconia ceramics.

Swain [1] observed the shape recovery of a bent magnesia-partiallystabilized zirconia (Mg-PSZ) bar upon heating above a certain temperature. The maximum deflection which was nearly completely recovered on heating is about 300 μm.

Chen et al [2] investigated the pseudoelasticity and shape memory effect (SME) in ceria-stabilized tetragonal zirconia polycrystals (Ce- TZP) containing 12 mol% CeO2.Wang et al [3] also observed the SME in Ce-TZP containing 10 mol% CeO2,.Here we would like to introduce some of results conducted recently in our group on SHE in Ce-TZP ceramics.

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References

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1. Swain, M.V., Nature (London) 322, 234 (1986)
2. Reyes-Morel, P.E., Cherng, J.S. and Chen, I.W., J.Am.Ceram.Soc., 71, 648 (1988)
3. Yong, Huang, Zhaoqiang, Zheng, Bo, Ding, Longlie, Zheng, Zuozhao, Jiang J.Chinese.Ceram.Soc., 18, 228 (1990)(in chinese)
4. Jiang, B.H. and Hsu, T.Y. Zuyao), (Xu, Materials Science Forum, 56–58, 457 (1990)

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