کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1663111 | 1517701 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of thermal barrier coating exposed to different oxygen partial pressure environments by 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
In this investigation, the oxidation of two-layer thermal barrier coatings (TBCs) prepared by EB-PVD (electron beam physical vapor deposition) in different oxygen concentration environments at 1323 K was evaluated by impedance spectroscopy and microstructural observation (SEM). The higher partial pressure of oxygen accelerated the oxidation rate of bond coating and faster oxidation caused cracking at interface between the TGO and the bond coat. Impedance spectroscopy was used to evaluate the microstructural changes which occurred in the TBC system non-destructively. The relationship between the electrical conductivity of the YSZ layer and its microstructure including the parameters of microcracks was established.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 201, Issues 1â2, 12 September 2006, Pages 446-451
Journal: Surface and Coatings Technology - Volume 201, Issues 1â2, 12 September 2006, Pages 446-451
نویسندگان
Chunxia Zhang, Chungen Zhou, Shengkai Gong, Hefei Li, Huibin Xu,