کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7885934 | 1509784 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical and experimental investigations on high temperature mechanical and thermal properties of BaZrO3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Theoretical and experimental investigations on high temperature mechanical and thermal properties of BaZrO3 Theoretical and experimental investigations on high temperature mechanical and thermal properties of BaZrO3](/preview/png/7885934.png)
چکیده انگلیسی
The perovskite BaZrO3 has high phase stability from room temperature to its melting point and therefore is regarded as a promising candidate for various high-temperature applications. In this work, the mechanical and thermal properties of BaZrO3 at high temperatures are investigated by combining first-principles calculations and experimental approaches. BaZrO3 has moderate mechanical properties and low thermal conductivity, being comparable to other zirconium-based and silicate structural ceramics. Its remaining Young's modulus of 174.4â¯GPa at 1523â¯K is 81.6% of 213.8â¯GPa at room temperature. The residual flexural strength of 127.8â¯MPa at 1273â¯K is 74% of 172.4â¯MPa at room temperature, while the residual value at 1673â¯K is still 53.4â¯MPa. The thermal conductivity of BaZrO3 is 5.75â¯Wâ¯mâ1 Kâ1 at 298â¯K and decreases to 2.81â¯Wâ¯mâ1 Kâ1 at 1473â¯K. The good high temperature mechanical and thermal properties ensure the potential high temperature applications of BaZrO3 and our results are expected to arouse the design of BaZrO3-based ceramics in the near future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 14, 1 October 2018, Pages 16475-16482
Journal: Ceramics International - Volume 44, Issue 14, 1 October 2018, Pages 16475-16482
نویسندگان
Yuchen Liu, Wei Zhang, Banghui Wang, Luchao Sun, Fangzhi Li, Zhenhai Xue, Guohong Zhou, Bin Liu, Hongqiang Nian,