Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Electrical conductivity relaxation measurements : Application of low thermal mass heater stick

Title data

Chen, Di ; Groß, Andrea ; Bono, David C. ; Kita, Jaroslaw ; Moos, Ralf ; Tuller, Harry L.:
Electrical conductivity relaxation measurements : Application of low thermal mass heater stick.
In: Solid State Ionics. Vol. 262 (2014) . - pp. 914-917.
ISSN 0167-2738
DOI: https://doi.org/10.1016/j.ssi.2014.01.023

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
No informationMO 1060/9-1

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The widely used electrical conductivity relaxation technique for extracting kinetic data such as diffusivity and surface reaction rates typically relies on monitoring relaxations following changes in pO2 rather than changes in temperature. In this study, we demonstrate the utility in examining conductivity relaxation upon rapid changes in temperature to aid in deconvoluting defect migration and formation energies. This is achieved by the use of a low thermal mass heater stick enabling rapid variations in sample temperature. We apply this technique to a specimen of Pr0.1Ce0.9O2−δ to determine the reduction (Hr) and carrier mobility (Hm,i) energies. We further illustrate the ability to extract activation energies, with high precision, over narrow temperature ranges, by sinusoidal variation in temperature.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 01 Dec 2014 09:16
Last Modified: 15 Apr 2016 07:50
URI: https://eref.uni-bayreuth.de/id/eprint/3849