کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10156100 | 1666372 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal expansion studies of electron beam evaporated yttria films on Inconel-718 substrates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal expansion studies of electron beam evaporated yttria films on Inconel-718 substrates Thermal expansion studies of electron beam evaporated yttria films on Inconel-718 substrates](/preview/png/10156100.png)
چکیده انگلیسی
In this paper, phase pure cubic yttrium oxide (Y2O3) films deposited by electron beam physical vapor deposition technique on Inconel-718 substrate at different substrate temperatures (773-973â¯K) are investigated. The structure and phase evolution in the films of Y2O3 as a function of substrate temperature have been evaluated by X-ray diffraction. Atomic force microscopy and scanning electron microscopy were used to examine the surface roughness and morphology of the as-deposited Y2O3 films. The adhesion behavior of the Y2O3 film with Inconel-718 substrate was investigated using scratch indentation testing. The thermal expansion coefficient (TEC) of Inconel-718 substrate and Y2O3 film coated on Inconel-718 substrate were determined by high temperature X-ray diffraction (HTXRD) measurement in the temperature range of 298-1273â¯K with temperature interval of 100â¯K. The linear TECs of Inconel-718 and Y2O3 film at 1273â¯K were found to be 1.22â¯Ãâ¯10â5â¯Kâ1 and 7.02â¯Ãâ¯10â6â¯Kâ1, respectively. Thermal stability of the Y2O3 coated Inconel-718 substrate tested at 1273â¯K in air over a period of 100â¯h is also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 354, 25 November 2018, Pages 297-305
Journal: Surface and Coatings Technology - Volume 354, 25 November 2018, Pages 297-305
نویسندگان
A.M. Kamalan Kirubaharan, P. Kuppusami, T. Dharini,