کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7894507 1509988 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental testing and FEM calculation of impedance spectra of thermal barrier coatings: Effect of measuring conditions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Experimental testing and FEM calculation of impedance spectra of thermal barrier coatings: Effect of measuring conditions
چکیده انگلیسی
Impedance spectroscopy (IS) is a nondestructive evaluation tool for examining degradation of thermal barrier coatings used in the hot section of aeroturbine engines. Key factors controlling IS include microstructure features and measuring conditions. Here we systematically investigate the effect of several measuring conditions on IS via experiment and finite element method (FEM). The results show that the most significant factor affecting the spectra is the temperature, followed by the silver electrode area, while both exert more obvious effect than the voltage amplitude. Furthermore, suitable values for the measuring parameters are optimized based on the results of experiment and FEM calculation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 107, June 2016, Pages 155-171
نویسندگان
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