Article
Corrosion-Resistant Glasses for Steel Enamels
U.S. Patents
Abstract
A cementitious composite material wherein glass-coated steel rods are positioned in a cementitious matrix. The glass composition for coating the steel reinforcing rods includes between about 33-45 weight percent SiO2, 13.5-19.5 weight percent B2O3, 3.5-4.6 weight percent Al2O3, 4.0-13.5 weight percent K2O, 5.5-15.5 weight percent ZrO2, 8.6-15.9 weight percent Na2O, 4.6-5.1 weight percent CaO, 0.6-0.7 weight percent MnO2, 1.0-1.0 weight percent NiO, and 1.0-1.1 weight percent CoO. The glass composition is typically in compression on the rods at ambient temperatures, has a coefficient of thermal expansion of between about 12.5 and about 13.5, and has a softening temperature of between about 585 degrees Celsius and about 600 degrees Celsius.
Department(s)
Materials Science and Engineering
Second Department
Civil, Architectural and Environmental Engineering
Comments
The invention was made in part from government support under Grant No. W911NF-07-2-0062 from the Department of the Army. The U.S. Government has certain rights in the invention.
Patent Application Number
US13/040,781
Patent Number
US8679389B2
Document Type
Patent
Document Version
Final Version
File Type
text
Language(s)
English
Publication Date
3-1-2014
Publication Date
01 Mar 2014
Disciplines
Citation Information
Richard K. Brow, Signo Tadeu Dos Reis, Michael L. Koenigstein and Genda Chen. "Corrosion-Resistant Glasses for Steel Enamels" U.S. Patents (2014) Available at: http://works.bepress.com/genda-chen/279/