کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1458977 | 989587 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphology and microstructure of ZrB2–SiC ceramics after ablation at 3000 oC by oxy-acetylene torch
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Application of ZrB2–SiC ceramic at temperatures above 2500 °C requires evaluation of the ablation behavior of the material. The ZrB2–SiC ceramics with SiC contents of 15% and 30% in volume were fabricated by SPS under a temperature of 1580 °C. The ceramics were then ablated by an oxy-acetylene flame with a temperature of 3000 °C. It was found that ZrB2–SiC consists of three distinct ablation layers (ZrO2, SiO2-rich, and SiC-depleted) after ablation. The ablation mechanism revealed that ZrB2–SiC forms a SiO2-rich layer, which slows down the diffusion of oxygen but accelerates the active oxidation of SiC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 2, Part A, 1 February 2016, Pages 2798–2805
Journal: Ceramics International - Volume 42, Issue 2, Part A, 1 February 2016, Pages 2798–2805
نویسندگان
Xiang Zhang, Zhaoke Chen, Xiang Xiong, Rutie Liu, Yinyu Zhu,