Doctoral Dissertations

Abstract

"The valence state and coordination site of the transition-metal ion, chromium, was investigated in a MgO host lattice. The chromium ion incorporated into poly-crystalline MgO by quenching from elevated temperatures allowed investigation of a single crystalline phase, MgO-solid solution (ss). The chromium ion was confirmed to occur in the trivalent state and to occupy octahedral cation sites in the MgO lattice by the use of optical reflectance spectroscopy. The effect of the concentration of the chromium ion on the crystal field splitting energy, 10 Dq, permitted analysis over a range of Dq/B values. In conjunction, MgO-ss lattice parameters examined as a function of chromium ion concentration contributed to the interpretation of the relation between the lattice parameter and crystal field strength"--Abstract, page iii.

Advisor(s)

Moore, Robert E., 1930-2003

Committee Member(s)

McDonald, H. O. (Hector O.)
Roach, D. Vincent
Kreidl, N. J.
Slaughter, M.
Planje, Theodore J., 1919-1980

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Ceramic Engineering

Sponsor(s)

American Iron and Steel Institute

Publisher

University of Missouri at Rolla

Publication Date

1968

Pagination

viii, 80 pages

Note about bibliography

Includes bibliographical references (pages 75-78).

Rights

© 1968 Thomas S. Montgomery, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Chromium -- Spectra
Lattice paths
Ligands (Biochemistry)
Magnesium oxide

Thesis Number

T 2078

Print OCLC #

5994841

Electronic OCLC #

802286519

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