کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8026445 | 1517604 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Gradient TiC-Ti5Si3-TiSi2 barrier layer on SiC in SiC-borosilicate glass composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The oxidation of SiC in SiC-borosilicate glass composites releases gases which cause a high volume expansion ratio and low bending strength and limits the application of the composites as packaging materials. To solve this problem, we deposited a Ti compound coating on SiC by heating a mixture of TiH2 and SiC particles at 750 °C for 1 h under vacuum. The thickness of the coating was about 200 nm, and the coating was a gradient TiC-Ti5Si3-TiSi2 barrier layer according to the result of the X-ray diffraction. The coated SiC had a better anti-oxidation ability than uncoated ones in borosilicate glass, and as a result, the volume expansion ratio of the composites with 25 vol.% coated SiC was reduced by 287%, and the bending strength was increased by 117%. The composites with 55 vol.% SiC had the maximum thermal conductivity (14.2 Wmâ 1 Kâ 1) and rather low thermal expansion coefficient (4.98 Ã 10â 6).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 275, 15 August 2015, Pages 349-356
Journal: Surface and Coatings Technology - Volume 275, 15 August 2015, Pages 349-356
نویسندگان
Xiaozhe Cheng, Yanhui Wang, Junjie Huang, Jianbing Zang, Jing Lu, Yiqing Yu, Xipeng Xu,