Masters Theses

Abstract

"A computer controlled apparatus for the measurement of dc electrical conductivity and Seebeck coefficient as a function of temperature and oxygen partial pressure has been developed. Thermocouples are in electrical and thermal contact with the ends of the specimen bar. This allows both Seebeck and four-wire electrical conductivity measurements to be made in situ. Environmental enclosure of the specimen allows measurements over a range of oxygen activities from 1 to 10-18 atm. A discussion of the measuring technique with schematics of the apparatus and data retrieval system is made. Results for measurements in selected oxide ceramics are compared to literature cited values. The 3ε uncertainty in the Seebeck coefficient is found to be 6.2% or less. The uncertainty in the electrical conductivity, σ , is found to be 2% or less"--Abstract, page ii.

Advisor(s)

Anderson, H. U. (Harlan U.)

Committee Member(s)

Kuo, Jen-Ho
Sparlin, Don M.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

United States. Department of Energy

Publisher

University of Missouri--Rolla

Publication Date

Fall 1987

Pagination

viii, 64 pages

Note about bibliography

Includes bibliographical references (pages 38-42).

Rights

© 1987 George Francis Carini, II, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Thermal conductivityThermoelectric apparatus and appliancesElectric conductivity -- Measurement

Thesis Number

T 5580

Print OCLC #

17694350

Electronic OCLC #

904723968

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