Masters Theses
Abstract
"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.
Advisor(s)
Anderson, H. U. (Harlan U.)
Committee Member(s)
Sparlin, Don M.
Nasrallah, Magdi M.
Department(s)
Materials Science and Engineering
Degree Name
M.S. in Ceramic Engineering
Publisher
University of Missouri--Rolla
Publication Date
Summer 1993
Pagination
x, 77 pages
Note about bibliography
Includes bibliographical references (pages 74-76).
Rights
© 1993 John Andrew Conrad, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Thesis Number
T 6626
Print OCLC #
29304590
Electronic OCLC #
1053901572
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://merlin.lib.umsystem.edu/record=b2668539~S5Recommended Citation
Conrad, John Andrew, "An investigation of the electrical and structural properties of the La1-xCaxAl1-yCryO₃ system" (1993). Masters Theses. 1277.
https://scholarsmine.mst.edu/masters_theses/1277
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