Electromechanical devices and methods for forming coating layers on components thereof

Electromechanical devices and methods of forming coating layers thereon are provided. The electromechanical devices include components each having one or more surfaces formed of one or more metallic materials and susceptible to operating environments having temperatures in excess of 150 °C for a long term, and electrically insulative coating layers formed on the one or more surfaces of the components. The coating layer is configured to survive in operating environments having temperatures in excess of 180 °C for a long term.