Masters Theses

Abstract

"The effect of zinc vapor on the dc resistance of polycrystalline zinc oxide was investigated at temperatures of 700 and 800 ºC. The partial pressures of zinc vapor used to investigate this behavior ranged from 1E-04 to 1E-02 atmospheres. The results show that the resistance of polycrystalline zinc oxide is significantly decreased in the presence of zinc vapor at these temperatures. The decrease in resistance is attributed to donor electrons associated with adsorbed zinc on the surface of zinc oxide, and not to bulk diffusion of zinc into the oxide. The decrease in resistance is also found to be dependent on the zinc partial pressure, with higher zinc pressures producing a larger decrease in resistance. The relationship between zinc partial pressure and resistance is not observed to depend strongly on temperature"--Abstract, page iv.

Advisor(s)

Mattox, Douglas M.

Committee Member(s)

Huebner, Wayne
Roach, D. Vincent

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

Generic Mineral Technology Center for Pyrometallurgy (U.S.)
United States. Department of the Interior

Publisher

University of Missouri--Rolla

Publication Date

1997

Pagination

x, 51 pages

Note about bibliography

Includes bibliographical references (pages 37-39).

Rights

© 1997 John Jeffrey Venarsky, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Zinc -- MetallurgyZinc -- ReactivityZinc oxideEvaporationEvaporation -- Measurement

Thesis Number

T 7325

Print OCLC #

37774180

Electronic OCLC #

905242888

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