Masters Theses

Abstract

"Compressive creep measurements were made on two groups of mullites at temperatures between 1455ºC and 1520ºC. The first group consisted of commercially manufactured mullites. The second group was made up of 7 different mullite compositions spanning the alumina-silica solid solution range from 3Al₂O₃ • 2SiO₂ to 2Al₂O₃ • SiO₂ . Thermal activation energies and stress exponents were calculated for the mullites in the second group. Steady state strain rates taken at 1460ºC under loads of 100 and 110 psi varied between 1.3x10⁻⁴ in/in/hr and 15.4x10⁻⁴ in/in/hr. Activation energies were between 109 Kcal/mole and 204 Kcal/mole. Stress exponents calculated from data taken at 1460ºC under loads of 20 to 410 psi ranged between 0.59 and 1.54"--Abstract, page iii.

Advisor(s)

Moore, Robert E., 1930-2003

Committee Member(s)

Anderson, H. U. (Harlan U.)
Summers, David A.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

Kaiser Aluminum and Chemical Corporation

Publisher

University of Missouri--Rolla

Publication Date

1971

Pagination

vii, 51 pages, 16 figures

Note about bibliography

Includes bibliographical references (page 38).

Rights

© 1971 Peter C. Smith, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Mullite -- Creep -- Mathematical modelsMullite -- Effect of temperature onMaterials at high temperatures

Thesis Number

T 2596

Print OCLC #

6037478

Electronic OCLC #

874573439

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