کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10668815 | 1008471 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determining thermal conductivity of plasma sprayed TBC by electrochemical impedance spectroscopy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Thermal conductivity, K, of free-standing air plasma sprayed (APS) thermal barrier coatings (TBCs) after exposure at temperatures of 1100, 1200, and 1350 °C for 3, 10, 17, 24, and 120 h was measured using laser flash (LF) technique and differential scanning calorimeter (DSC), and correlated with the spectra of electrochemical impedance spectroscopy (EIS). High-temperature exposure of TBCs increases the thermal conductivity as well as the electrochemical conductance, CtT, with an increase in exposure temperature and exposure time. A linear relationship between thermal conductivity, K, and electrochemical conductance, CtT, has been found. The result has demonstrated that electrochemical impedance technique holds the promise enabling to assess and monitor the thermal conductivity of free-standing TBCs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 190, Issue 1, 3 January 2005, Pages 90-97
Journal: Surface and Coatings Technology - Volume 190, Issue 1, 3 January 2005, Pages 90-97
نویسندگان
J. Zhang, V. Desai,