Masters Theses
Abstract
"Strength degradation and crack propagation in Al2O3 are shown to depend on the initial strength and porosity of the material. Specimens were fabricated containing between 0 and 5% induced cylindrical, two dimensional, and spherical porosity. The strengths of the various porosity samples decreased discontinuously at a critical quenching temperature. No difference was observed in the critical temperature for the various aluminas; initial strength decrease occurred between 165°C and 175°C temperature differential. The strength retained after thermal shock decreased with increasing initial strength. The degree of damage sustained upon shocking was also characterized by crack density and crack depth measurements. The crack density increases with increasing severity of shock. The crack density is shown to increase with increasing porosity. Crack depth decreases with increasing porosity"--Abstract, page ii.
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)
Alcoa
Publisher
University of Missouri--Rolla
Publication Date
1973
Pagination
ix, 89 pages
Note about bibliography
Includes bibliographical references.
Rights
© 1973 Russell David Smith, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Library of Congress Subject Headings
Aluminum oxide -- Thermal properties
Thermal stresses
Porosity
Thesis Number
T 2944
Print OCLC #
6022686
Electronic OCLC #
914239821
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=b1066956~S5Recommended Citation
Smith, Russell David, "The effect of porosity on strength degradation in thermally shocked alumina" (1973). Masters Theses. 3457.
http://scholarsmine.mst.edu/masters_theses/3457
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