CAS OpenIR  > 多相复杂系统国家重点实验室
Analysis of the ionic conduction in Y2O3-stabilized ZrO2 at low temperatures by impedance spectroscopy
Li, Y.; Gong, J. H.; Chen, Y. F.; Xie, Y. S.
2002
Conference Name2nd China International Conference on High-Performance Ceramics (CICC-2)
Source PublicationHIGH-PERFORMANCE CERAMICS 2001, PROCEEDINGS 丛书: KEY ENGINEERING MATERIALS
Pages163-168
Conference DateNOV 11-15, 2001
Conference PlaceKUNMING, PEOPLES R CHINA
PublisherTrans Tech Publications Ltd
AbstractThe AC conductivity, sigma(ac) of an 8mol%-yttria-stabilized zirconia ceramic was obtained as a function of frequency, f, from complex impedance measurements in the temperature range between 313 and 473 K. By analyzing the conductivity spectra according to the universal dynamic response (UDR) expression, sigma(ac), = sigma(dc), [1 +(f/f(P))(5)], a set of parameters, including the DC conductivity sigma(dc),, the carrier hopping rate omega(H) and the effective carrier concentration n, were extracted to describe the ionic mobility and to yield the activation energies for different processes associated with ionic conduction. It was found that the activation energy for ionic conduction, E, increases with increasing temperature, being rather different with those observed in high temperature range. The effect of ionic mobility on the activation energy E was then discussed briefly and a possible explanation for the observed temperature dependence of E was proposed.
KeywordIonic Conductivity Zirconia Complex Impedance Yttria-stabilized Zirconia Ac Conductivity Single-crystals Energies Model
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/5619
Collection多相复杂系统国家重点实验室
Recommended Citation
GB/T 7714
Li, Y.,Gong, J. H.,Chen, Y. F.,et al. Analysis of the ionic conduction in Y2O3-stabilized ZrO2 at low temperatures by impedance spectroscopy[C]:Trans Tech Publications Ltd,2002:163-168.
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