Masters Theses
Abstract
"The zinc iron phosphate system is investigated for use as an enamel for the automotive industry. The thermal properties and chemical durability of the glass-forming region are measured. Compositions are selected based on their oxygen to phosphorus (O/P) ratio at values of 3.5, 3.25, and 3.0. Substitutions of SnO, CuO, Li2O, Na2O, K2O for ZnO and B2O3 for Fe2O3 are used to alter the properties of the base glasses to achieve a particular range of Tg, CTE and durability. The 3.25 and 3.0 O/P glasses are found have too low a durability to be used as an enamel. Within the 3.5 O/P glasses, high iron content produces too high a Tg to be useable. Of the lower iron glasses, the alkali modifiers are able to reduce Tg sufficiently without sacrificing CTE or durability. Li2O increases the tendency of the glass to crystallize so that it does not re-melt and flow. A combination of Na2O and K2O provides the correct range of thermal properties and durability and SEM images show a consistent wetting of the substrate glass. The final glass composition chosen was 5Na2O · 5Na2O · 20.2ZnO · 21.8 Fe2O3 · 48 P2O5. The wetting experiments determined an optimum enameling treatment of 650°C for 5 min"--Abstract, page iii.
Advisor(s)
Brow, Richard K.
Committee Member(s)
Fahrenholtz, William
O'Keefe, Matthew
Department(s)
Materials Science and Engineering
Degree Name
M.S. in Ceramic Engineering
Publisher
University of Missouri--Rolla
Publication Date
Fall 2003
Pagination
ix, 69 pages
Note about bibliography
Includes bibliographical references (pages 67-68).
Rights
© 2003 Kristine Ann Miller, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Subject Headings
Glass-ceramicsEnamel and enameling
Thesis Number
T 8402
Print OCLC #
55222576
Electronic OCLC #
1079420285
Recommended Citation
Miller, Kristine Ann, "Zinc iron phosphate glass for enameling applications" (2003). Masters Theses. 2444.
https://scholarsmine.mst.edu/masters_theses/2444
Share My Thesis If you are the author of this work and would like to grant permission to make it openly accessible to all, please click the button above.
