کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8013195 | 1517166 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Delamination-indicating of atmosphere-plasma-sprayed thermal barrier coating system using Eu3+ luminescence mapping
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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
The strong scattering of the microstructures severely weakens light transmitted through the atmosphere-plasma-sprayed (APS) thermal barrier coating system (TBCs), which poses a great challenge to indicate APS TBCs delamination using optical inspection method. In this paper, to indicate the delamination in APS TBCs, an innovative method was proposed based on a luminescent sublayer that produces significantly greater emission intensity from delaminated regions of the TBCs. The top coat was prepared with a Eu3+-doped yttria-stabilized zirconia (YSZ:Eu3+) luminescent layer below an undoped YSZ layer. The delamination was prepared using a dissolved salt method. Specimens were vacuum-impregnated with mineral oil to improve the transparency of the coating, and thus to reduce the effects of pores and microcracks on luminescence signal. For specimens with a Eu3+-doped YSZ luminescent sublayer, luminescence intensity mapping showed excellent contrast between the delaminated region and the surrounding adherent region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 222, 1 July 2018, Pages 41-44
Journal: Materials Letters - Volume 222, 1 July 2018, Pages 41-44
نویسندگان
Chunling Li, Xueling Fan, Peng Jiang, Xiaochao Jin,