Masters Theses

Abstract

"X-ray intensity and d-spacing measurements were performed upon samples in the system Li₂O-SiO₂. Samples ranged from 0.0 to 28.0 mole percent lithia and were fired for 72 hours at temperatures from 920ºC to 1400ºC. Atomic absorption analyses were made upon the fired samples. Non-equilibrium conditions were prevalent and results are inclusive. Quartz is the stable phase in the high silica field at temperatures below 1050ºC with cristobalite stable above that. The quartz - cristobalite transformation occurs at 950ºC with the cristobalite transforming into tridymite at 1010ºC. There was wide scattering of data at 1000ºC and below. There was no correlation between d or intensity values with composition. At higher temperatures, there is a definite relationship. First order least squares calculated lines were fitted to all points with high correlation coefficients. An IBM-360 computer was utilized to compute all data"--Abstract, page ii.

Advisor(s)

Sorrell, Charles A.

Committee Member(s)

Moore, Robert E., 1930-2003
James, William Joseph

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

Edward Orton Jr. Ceramic Foundation

Publisher

University of Missouri--Rolla

Publication Date

1972

Pagination

xi, 279 pages

Rights

© 1972 Roy Richard Ramey, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Ceramic materials
Glass-ceramics -- Effect of high temperatures on
X-rays -- Diffraction

Thesis Number

T 2716

Print OCLC #

6033158

Electronic OCLC #

880943129

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