The influence of oxygen activity on sintering of strontium doped lanthanum chromite.

Author

Leslie Groupp

Abstract

"The influence of oxygen activity upon the sintering of lanthanum chromite (La_1-xSr_x CrO₃) with x ranging from Oto 0.2 was investigated using chemically prepared powders of <0.1 microns particle size. The results show that at a temperature of 1740 ° C densities of >92% of theoretical could be achieved if the oxygen activities were maintained in the 10^-11 to 10^-12 atm. range. If oxygen activity exceeds 10^-10 atm., densities of not >80% theoretical could be obtained. For the compositions studied, room temperature X-ray analysis of both the starting powders and sintered compacts show the compositions to be orthorhombic and single phase. The ambient lattice parameters and resistivity measurements decreased with increasing percentages of strontium"-- Abstract, p. ii

Advisor(s)

Anderson, H. U. (Harlan U.)

Committee Member(s)

Moore, Robert E., 1930-2003
Sorrell, Charles A.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Publisher

University of Missouri--Rolla

Publication Date

1975

Pagination

ix, 115 pages

Note about bibliography

Includes bibliographical references (pages 96-98)

Rights

© 1975 Leslie Groupp, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 4064

Print OCLC #

5984592

Recommended Citation

Groupp, Leslie, "The influence of oxygen activity on sintering of strontium doped lanthanum chromite." (1975). Masters Theses. 3024.
https://scholarsmine.mst.edu/masters_theses/3024