کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1497994 1510877 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and thermal properties of RETaO4 (RE = Nd, Eu, Gd, Dy, Er, Yb, Lu) as promising thermal barrier coating materials
ترجمه فارسی عنوان
ریزساختار و خواص حرارتی RETaO4 (RE = Nd و Eu، GD، DY، استروژن، YB، Lu به عنوان مواد پوشش سد حرارتی امیدبخش
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

The RETaO4 ceramics with low-thermal conductivity were fabricated using a solid-state reaction. The phase composition and microstructures of high-temperature RETaO4 (RE = Nd, Eu, Gd, Dy, Er, Yb, Lu) ceramics were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscopy. The RETaO4 ceramics had lower thermal conductivity (1.38 to 1.94 W·m− 1·K-1 at 800 °C) than 7-8YSZ (2.37 and 2.47 W·m− 1·K− 1 at 800 °C, respectively). The porosity significantly affected the thermal conductivity of RETaO4 ceramics. The RETaO4 ceramics also had lower Vickers hardness than 8YSZ, which suggests that RETaO4 has better fracture toughness and thermal tolerance.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 126, 1 January 2017, Pages 24–28
نویسندگان
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