Electrical Conduction in Ceramics: Toward Improved Defect Interpretation
- Robert N. Schock
Published Online: 18 MAR 2013
Copyright 1985 by the American Geophysical Union.
Point Defects in Minerals
How to Cite
Tuller, H. L. (1985) Electrical Conduction in Ceramics: Toward Improved Defect Interpretation, in Point Defects in Minerals (ed R. N. Schock), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM031p0047
- Published Online: 18 MAR 2013
- Published Print: 1 JAN 1985
Print ISBN: 9780875900568
Online ISBN: 9781118664070
- Mineralogical chemistry—Congresses;
Although defects control many physical and chemical parameters of importance in solids, a detailed understanding of their generation and motion is lacking in all but a select number of materials. Methods for determining the defect properties of rather complex systems by following a systematic program of electrical measurements in conjunction with the development of defect chemical models are outlined. Specifically, methods for deconvoluting microstructure from bulk, ionic from electronic and carrier density from mobility contributions to the measured electrical conductivity are emphasized. Examples taken from the recent literature, notably MgO and ThO2-CeO2, are used to demonstrate the principles. Special precautions in applying this approach to rather more complex mineral systems are noted.