"Electrical conductivity and Seebeck coefficient measurements for the La1-xCaxAl1-yCryO3 system were carried out as a function of temperature and composition for the 20% Ca/Cr ratio series, in which the amount of Ca and Cr were kept at a fixed 1:5 ratio; the La0.80Ca0.20(Al,Cr)O3 series; and the (La,Ca)AlO3 series. The conductivity results for the 20% Ca/Cr ratio series and La0.80Ca0.20(Al,Cr)O3 series indicate that those systems can be related to a site percolation model in which small polarons hop between available Cr sites. This is exemplified by the temperature independent Seebeck coefficients. Conductivity is attributed to the mixed electronic and ionic compensation of Ca in the (La,Ca)AlO3 series and when y 0.80Ca0.20(Al,Cr)O3 series"--Abstract, page ii.
Anderson, H. U. (Harlan U.)
Sparlin, Don M.
Nasrallah, Magdi M.
Materials Science and Engineering
M.S. in Ceramic Engineering
University of Missouri--Rolla
x, 77 pages
© 1993 John Andrew Conrad, All rights reserved.
Thesis - Restricted Access
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu/record=b2668539~S5
Conrad, John Andrew, "An investigation of the electrical and structural properties of the La1-xCaxAl1-yCryO₃ system" (1993). Masters Theses. 1277.
Share My Thesis If you are the author of this work and would like to grant permission to make it openly accessible to all, please click the button above.