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Article: Optimizing enamel adhesion.(experiments on enamel adhesion to steel)
- Article from:
- Ceramic Industry
- Article date:
- December 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The way in which enamel bonds to steel can be categorized as mechanical, physical or chemical. A mechanical bond depends on the surface roughness of the steel, which can produce minor improvements in adhesion. A physical bond is typically related to compressive or Van Der Waals forces, which are very weak at best.
Chemical bonding, the bond most often reported in literature, occurs when the oxide dissolves into the glass. Joseph A. Pask relates that good adherence of a glass to a metal surface occurs when both the enamel and steel are saturated with metal oxides at the interface. (1) However, if the firing process is so low that the oxide cannot dissolve or so ...