کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440823 | 1398238 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-situ fabrication of amorphous/eutectic Al2O3-YAG ceramic composite coating via atmospheric plasma spraying
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
The microstructure and property of plasma-sprayed Al2O3-Y3Al5O12 (YAG) composite coatings were investigated. The sprayable feedstock was composed of Al2O3/Y2O3 granules obtained from the spray drying. As-sprayed Al2O3-YAG composite coating showed obvious amorphous characteristics. Post-heat treatment facilitated the complete crystallization of the Al2O3-YAG composite coating. The heat-treated Al2O3-YAG ceramic coating possessed the deposition microstructure comprising three-dimensional interpenetrating network of α-Al2O3/YAG eutectic phases, which is very similar to the directional solidification microstructure of Al2O3/YAG eutectic bulk ceramics. This eutectic coating microstructure does not correspond to a traditional eutectic microstructure. Al2O3-YAG ceramic coating with eutectic composition is obtained from the crystallization of an amorphous solid ceramic instead of the solidification of the liquid. Furthermore, the plasma-sprayed Al2O3-YAG eutectic ceramic coating with the heat treatment exhibits excellent microstructure and performance stabilities under high temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 36, Issue 16, December 2016, Pages 4261-4267
Journal: Journal of the European Ceramic Society - Volume 36, Issue 16, December 2016, Pages 4261-4267
نویسندگان
Kai Yang, Jian Rong, Jingwei Feng, Yin Zhuang, Shunyan Tao, Chuanxian Ding,