Doctoral Dissertations

Abstract

"The phase compatibility relationships for the quaternary system lime-titania-zirconia-silica have been determined by a solid-phase-reaction technique.

Preliminary division of the system into Alkemade tetrahedra was based on the phases found in samples by X-ray diffraction analysis. These samples covered the entire volume of the tetrahedron in a systematic fashion. When the quaternary system had been divided into regions or compatible phases, an analytical method was used to calculate the phase composition of each sample. The relative amounts of each phase in a sample determined by X-ray analysis were compared with the calculated quantities, and agreement between the two methods verified the compatibility relationships. Solid-phase-reaction techniques have been shown to lead to complete reaction, for all practical purposes, among the components of this system.

An extended area of solid solution was found to exist along the join between calcium titanate and calcium zirconate. A low-melting region was shown to extend through the quaternary system parallel to the join from titania to calcium metasilicate near ten per cent zirconia.

Equations have been derived for determining the phase composition of samples in this system for which the oxide composition is known "--Abstract, page x.

Advisor(s)

Herold, P. G.
Planje, Theodore J., 1919-1980

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Ceramic Engineering

Sponsor(s)

Edward Orton Jr. Ceramic Foundation

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1956

Pagination

x, 131 pages

Note about bibliography

Includes bibliographical references (pages 72-73).

Rights

© 1956 Robert Martin Gruver, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

X-ray crystallography
X-rays -- Diffraction
Calcium titanate -- Analysis

Thesis Number

T 1124

Print OCLC #

5920253

Electronic OCLC #

946043651

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