Mechanical Engineering ETDs
The adhesion of coatings often controls the performance of the substrate-coating system. Certain engineering applications require an epoxy coating on a brittle substrate to protect and improve the performance of the substrate. Experimental observations and measurements of interfacial adhesion in glass-epoxy systems are described in this thesis. A comparison study of how different glass treatments affect adhesion was also conducted: smooth versus rough, clean versus unclean, stressed versus non-stressed. The Oliver and Pharr method was utilized to calculate the bulk epoxy hardness and elastic modulus. Spherical indentations were used to induce delaminations at the substrate-coating interface. The delamination sizes as a function of load were used to calculate the interfacial toughness. The interfacial fracture energy of my samples is an order of magnitude higher than a previous group who studied a similar glass-epoxy system.
Adhesion, Indentation, Glass, Epoxy, Interfaces, Bonding, Coatings
Level of Degree
First Committee Member (Chair)
Second Committee Member
Sandia National Laboratories
Hutchins, Karen. "Measurement of Interfacial Adhesion in Glass-Epoxy Systems Using the Indentation Method." (2015). https://digitalrepository.unm.edu/me_etds/90