Influence of an applied dc electric field on the plastic deformation kinetics of oxide ceramics
作者： Hans Conrad , Di Yang
DOI: 10.1080/14786430903304137
关键词:
摘要: A modest dc electric field markedly reduced the tensile flow stress at high temperatures in three polycrystalline oxides, i.e. MgO, Al2O3 and yttria-stabilized tetragonal ZrO2 (Y-TZP). The reduction ΔσE Y-TZP consisted of components: (i) ΔσT due to Joule heating, (ii) a rapid, reversible component obtained on-off step tests (iii) cumulative effect on microstructure. Only occurred MgO Al2O3. It is concluded that results from electrochemical potential for formation vacancies corresponding diffusion rate-controlling ion space-charge grain boundary. calculated magnitude zone width its temperature solute composition dependence are accord with theory experiment; attributed mainly retardation growth by field. could be one or more following effects zone: (i...
harvard.edu
philpapers.org
sci-hub.se 参考文章(39)
Stephen Starnes, Hans Conrad, Grain size distribution in ultrafine-grained yttria-stabilized zirconia deformed without and with an electric field Scripta Materialia. ,vol. 59, pp. 1115- 1118 ,(2008) , 10.1016/J.SCRIPTAMAT.2008.07.025
H. Conrad, D. Yang, Effect of DC electric field on the tensile deformation of ultrafine-grained 3Y-TZP at 1450-1600 °C Acta Materialia. ,vol. 55, pp. 6789- 6797 ,(2007) , 10.1016/J.ACTAMAT.2007.08.032
H. Conrad, Di Yang, P. Becher, Effect of an applied electric field on the flow stress of ultrafine-grained 2.5Y-TZP at high temperatures Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 477, pp. 358- 365 ,(2008) , 10.1016/J.MSEA.2007.05.057
D YANG, H CONRAD, Influence of an electric field on the superplastic deformation of 3Y-TZP Scripta Materialia. ,vol. 36, pp. 1431- 1435 ,(1997) , 10.1016/S1359-6462(97)00045-6
Hidehiro Yoshida, Koji Morita, Byung-Nam Kim, Keijiro Hiraga, Takahisa Yamamoto, Doping amount and temperature dependence of superplastic flow in tetragonal ZrO2 polycrystal doped with TiO2 and/or GeO2 Acta Materialia. ,vol. 57, pp. 3029- 3038 ,(2009) , 10.1016/J.ACTAMAT.2009.03.009
Jincheng Wang, Gencang Yang, Junjie Li, On the stagnation of grain growth in nanocrystalline materials Scripta Materialia. ,vol. 60, pp. 945- 948 ,(2009) , 10.1016/J.SCRIPTAMAT.2009.02.015
Di Yang, Hans Conrad, Retardation of grain growth and cavitation by an electric field during superplastic deformation of ultrafine-grained 3Y-TZP at 1,450–1,600 °C Journal of Materials Science. ,vol. 43, pp. 4475- 4482 ,(2008) , 10.1007/S10853-008-2653-7
N. Balasubramanian, T.G. Langdon, Comment on the role of intragranular dislocations in superplastic yttria-stabilized zirconia Scripta Materialia. ,vol. 48, pp. 599- 604 ,(2003) , 10.1016/S1359-6462(02)00471-2
Hans Conrad, Enhanced Phenomena in Metals with Electric and Magnetic Fields: I Electric Fields Materials Transactions. ,vol. 46, pp. 1083- 1087 ,(2005) , 10.2320/MATERTRANS.46.1083
D. Gómez-García, C. Lorenzo-Martín, A. Muñoz-Bernabé, A. Domínguez-Rodríguez, Model of high-temperature plastic deformation of nanocrystalline materials: Application to yttria tetragonal zirconia Physical Review B. ,vol. 67, pp. 144101- ,(2003) , 10.1103/PHYSREVB.67.144101