کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1603457 | 1515979 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal shock behavior of ZrB2-SiC composite ceramics with added TaSi2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal shock behavior of ZrB2-SiC composite ceramics with added TaSi2 Thermal shock behavior of ZrB2-SiC composite ceramics with added TaSi2](/preview/png/1603457.png)
چکیده انگلیسی
The thermal shock behavior of ZrB2-SiC composite ceramics was remarkably enhanced by the addition of TaSi2 particles. TaSi2 enhanced the residual strength within the temperature range resulting from the crack-healing effect, especially at ~ 1400 °C. Residual fracture toughness increased with increasing TaSi2 content from 1000 °C to 1600 °C. The addition of soft phase TaSi2 positively affected the toughening mechanism. Considering the consumption of TaSi2 at ~ 1400 °C, fracture toughness of the TaSi2-containing ZrB2-SiC based ceramic decreased with increasing temperature. The formation of a compressive stress zone beneath the surface oxide layer increased fracture toughness at 1600 °C. The cohesive structure of the TaSi2-containing ZrB2-based material inhibited crack formation and retained higher mechanical properties. Apparent surface changes were observed as a result of oxidation after severe thermal shock test. From the viewpoint of thermodynamics, thermal oxidation resistance improved with the addition of TaSi2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 41, November 2013, Pages 507-516
Journal: International Journal of Refractory Metals and Hard Materials - Volume 41, November 2013, Pages 507-516
نویسندگان
Shubin Wang, Cheng Xu, Yongbin Ding, Xinghong Zhang,