کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1620636 | 1516391 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermophysical properties of lanthanum zirconate coating prepared by plasma spraying and the influence of post-annealing
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermophysical properties of lanthanum zirconate coating prepared by plasma spraying and the influence of post-annealing Thermophysical properties of lanthanum zirconate coating prepared by plasma spraying and the influence of post-annealing](/preview/png/1620636.png)
چکیده انگلیسی
Nano-scaled lanthanum zirconate powder prepared by co-precipitation-calcination method was plasma-sprayed into a thick coating on an alloy substrate. We investigated the thermophysical properties of the free-standing coating, including thermal conductivity and thermal expansion coefficients (TECs). Minimum value of the thermal conductivity (at 900 °C) of the coating was about 0.73 W mâ1 Kâ1, and the average TEC in the measurement range was about 9.45 Ã 10â6 Kâ1. Although the TEC value was similar to that of the bulk material, the change tendency versus temperature was different. After annealing at 1300 or 1400 °C for 50 h, we found that the heat insulation performance of the coating decreased with the heat treatment temperature, while the hardness and fracture toughness increased. A peak of sudden decrease in TEC value can be observed in the curve, and with increasing temperature, the peak shifted to high-temperature direction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 486, Issues 1â2, 3 November 2009, Pages 391-399
Journal: Journal of Alloys and Compounds - Volume 486, Issues 1â2, 3 November 2009, Pages 391-399
نویسندگان
Hongfei Chen, Yanfeng Gao, Shunyan Tao, Yun Liu, Hongjie Luo,