A on-line method is provided for detecting wear and/or damage to gas turbine parts. Preferred embodiments of the invention provide a gas turbine comprising parts with smart coatings and collection and detection means to measure wear and erosion of gas turbine parts. In other preferred embodiments, smart...http://www.google.ca/patents/US20030118440?utm_source=gb-gplus-sharePatent US20030118440 - SMART COATING SYSTEM WITH CHEMICAL TAGGANTS FOR COATING CONDITION ASSESSMENT
