Doctoral Dissertations

Abstract

"Fusion-cast alumina refractories have become a popular choice for crowns and side-walls in oxy-fueled glass furnaces due to their homogeneity, low porosity, high refractoriness, low levels of glassy phase, and good spall resistance. Yet, published engineering creep and high temperature modulus of elasticity data are essentially nonexistent for commercial refractories used in such applications in the glass industry. Results from research at the University of Missouri--Rolla and Oak Ridge National Laboratory on measurements of creep, physical, and microstructural characteristics are discussed, along with basic modeling of exhibited behavior and limitations of fusion-cast alumina refractories. Such physical characterization as density/porosity measurement, chemical analysis, microstructural analysis, elastic modulus, thermal expansion, thermal stability, and thermal conductivity were performed both at room temperature and elevated temperatures. Creep measurements were performed at stresses ranging from 0.2 - 0.6 MPa and temperatures from 1450 - 1650°C using a pneumatically controlled compressive creep frame and electrically heated furnace"--Abstract, page iii.

Advisor(s)

Moore, Robert E., 1930-2003

Committee Member(s)

Hilmas, Greg
Smith, Jeffrey D.
Van Aken, David C.
Wereszczak, Andrew A.
Ferber, Mattison K.

Department(s)

Materials Science and Engineering

Degree Name

Ph. D. in Ceramic Engineering

Comments

Acknowledgement is also due to the U. S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Industrial Technologies, Advanced Industrial Materials Program and the Glass Vision Team, under Contract DE-AC05-00OR22725 with UT - Battelle, LLC for financially sponsoring the work contained in this dissertation.

Publisher

University of Missouri--Rolla

Publication Date

Fall 2001

Pagination

xii, 179 pages

Note about bibliography

Includes bibliographical references (pages 157-164).

Rights

© 2001 James Gordon Hemrick, All rights reserved.

Document Type

Dissertation - Restricted Access

File Type

text

Language

English

Library of Congress Subject Headings

Refractory materials
Aluminum oxide -- Creep -- Measurement

Thesis Number

T 7977

Print OCLC #

50333445

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b4825035~S5

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