کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898374 | 1510134 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase stability and thermo-physical properties of ZrO2-CeO2-TiO2 ceramics for thermal barrier coatings
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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: Phase stability and thermo-physical properties of ZrO2-CeO2-TiO2 ceramics for thermal barrier coatings Phase stability and thermo-physical properties of ZrO2-CeO2-TiO2 ceramics for thermal barrier coatings](/preview/png/7898374.png)
چکیده انگلیسی
The properties of ZrO2 co-stabilized by CeO2 and TiO2 ceramic bulks were investigated for potential thermal barrier coating (TBC) applications. Results showed that the (Ce0.15Tix)Zr0.85-xO7 (xâ¯=â¯0.05, 0.10, 0.15) compositions with single tetragonal phase were more stable than the traditional 8YSZ at 1573â¯K. These compositions also showed a large thermal expansion coefficient (TEC) and a high fracture toughness, which were comparable to those of YSZ. However, the phase stability, fracture toughness and sintering resistance of the CeO2-TiO2-ZrO2 system showed a decline tendency with the increase of TiO2 content. The TEC of the ceramic bulks decreased with increase of TiO2 content as well because the crystal energy was enhanced with increasing substitution of Zr4+ by smaller Ti4+. The (Ce0.15Ti0.05)Zr0.8O2 had the best comprehensive properties among the (Ce0.15Tix)Zr0.85-xO2 compositions as well as a low thermal conductivity. Therefore, it can be explored as a TBC candidate material for high-temperature applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 7, July 2018, Pages 2841-2850
Journal: Journal of the European Ceramic Society - Volume 38, Issue 7, July 2018, Pages 2841-2850
نویسندگان
Jinshuang Wang, Junbin Sun, Qiangshan Jing, Bing Liu, Hao Zhang, Yongsheng Yu, Jieyan Yuan, Shujuan Dong, Xin Zhou, Xueqiang Cao,