Masters Theses

Abstract

"Internal friction and sodium and potassium self-diffusion coefficients for (1-X)Na₂O · XK₂O· 3SiO₂ glasses were measured. Alkali diffusion was measured between 300 and 500ºC using radioactive isotopes and a thin-sectioning technique. Internal friction was measured from room temperature to 500ºC, 0.1 to 2000 Hz. Comparison between alkali diffusion and internal friction data for Na-K glasses with those for other mixed-alkali glasses shows that the mixed-alkali peak is related to alkali mobility. It is concluded that the mechanism for mixed-alkali internal friction is a cooperative rearrangement of dissimilar alkali ions, with the slower moving ion controlling the rate of reorientation"--Abstract, page iii.

Advisor(s)

Day, D. E.
Kreidl, N. J.

Committee Member(s)

Sorrell, Charles A.,
McDonald, H. O. (Hector O.)

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

U.S. Army Research Laboratory

Publisher

University of Missouri--Rolla

Publication Date

1971

Pagination

viii, 50 pages

Rights

© 1971 James William Fleming, Jr., All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Glass-ceramics
Internal friction -- Measurement
Silicates
Alkalies

Thesis Number

T 2644

Print OCLC #

6039128

Electronic OCLC #

878078071

Comments

The author wishes to express his appreciation for the aid and advice given by Dr. Delbert E. Day, major advisor--Page iv. N.J. Kreidl signed as advisor on title page.

Share

 
COinS