What is ISO 22680 about?
ISO 22680 specifies a method for measuring the reproducible linear thermal expansion coefficient of ceramic topcoats (TCs) for thermal barrier coatings (TBCs) up to 1 300 °C. It specifies technicalities such as terms, definitions, the principle, apparatus for measuring the linear thermal expansion coefficient, preparing the specimen, measuring procedure, and test reports for measuring the linear thermal expansion coefficient of thermal barrier coatings.
Although the linear thermal expansion coefficient is an important property of thermal barrier coatings, the existing International Standard describes only a method for measuring this parameter for monolithic ceramics.
ISO 22680 also specifies a method for measuring the linear thermal expansion coefficient of the ceramic...