TY - JOUR
T1 - Characterizing the microstructure and mechanical and electrochemical properties of novel ceramic/polymer sandwich structural coatings
AU - Tang, Z.
AU - Xie, Y.
AU - Hawthorne, H.
AU - Neville, A.
AU - Thammachart, M.
AU - Troczynski, T.
AU - Li, G.
AU - Yang, Q.
PY - 2006/5/22
Y1 - 2006/5/22
N2 - In this study, a polymer bond layer was incorporated between the chemically bonded composite sol-gel coating (CB-CSG) and stainless steel substrate to form sandwich structure coatings for improving the coating's corrosion resistance in aqueous solutions. The low processing temperatures of CB-CSG coatings and a specified high temperature polymer (siloxane) make it possible to prepare polymer/CB-CSG composite coatings with an unusual combination of mechanical properties and corrosion resistance. Compared with non-polymer CB-CSG coatings, the ceramic/polymer sandwich coatings exhibit lower hardness and elastic modulus due to the infiltration of polymer into the CB-CSG ceramic coatings. However, the polymer layer of the sandwich structure coatings may remarkably reduce the residual stress in the coatings. Electrochemical characterization and salt spray tests indicate that the polymer layer is very efficient for improving the overall corrosion resistance. © 2005 Elsevier B.V. All rights reserved.
AB - In this study, a polymer bond layer was incorporated between the chemically bonded composite sol-gel coating (CB-CSG) and stainless steel substrate to form sandwich structure coatings for improving the coating's corrosion resistance in aqueous solutions. The low processing temperatures of CB-CSG coatings and a specified high temperature polymer (siloxane) make it possible to prepare polymer/CB-CSG composite coatings with an unusual combination of mechanical properties and corrosion resistance. Compared with non-polymer CB-CSG coatings, the ceramic/polymer sandwich coatings exhibit lower hardness and elastic modulus due to the infiltration of polymer into the CB-CSG ceramic coatings. However, the polymer layer of the sandwich structure coatings may remarkably reduce the residual stress in the coatings. Electrochemical characterization and salt spray tests indicate that the polymer layer is very efficient for improving the overall corrosion resistance. © 2005 Elsevier B.V. All rights reserved.
KW - Composite sol-gel coatings
KW - Electrochemical properties
KW - Mechanical properties
KW - Polymer bond layer
KW - Sandwich structure coatings
UR - http://www.scopus.com/inward/record.url?scp=33645777844&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2005.09.024
DO - 10.1016/j.surfcoat.2005.09.024
M3 - Article
SN - 0257-8972
VL - 200
SP - 5986
EP - 5994
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
IS - 20-21
ER -