کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438763 | 1398187 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of SiC-TiO2 hybrid aerogel via supercritical drying combined PDCs route
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The SiC-TiO2 hybrid aerogels were obtained from polycarbosilane (PCS) and tetrabutyltitanate (TBT) as precursors using supercritical drying and polymer derived ceramics route. The polymer to ceramic conversion and the crystallization behavior were studied by X-ray diffraction (XRD) and transmission electron microscopy (TEM), suggesting the preceramic aerogels converted to the SiC-TiO2 ceramic aerogels through pyrolysis process at different temperatures. At 1200 °C, the ceramic aerogels were homogeneous with well-distributed element components, composed of rutile TiO2 and the β-SiC crystalline phases. The results show that the SiC-TiO2 ceramic aerogels with netwoks structure have 23.36 nm average pore size, high surface area (58 m2/g) and pore volume (0.22 cm3/g).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 15, 15 November 2016, Pages 17053-17058
Journal: Ceramics International - Volume 42, Issue 15, 15 November 2016, Pages 17053-17058
نویسندگان
Peng Chu, Hongli Liu, Yajing Li, Haiyuan Zhang, Jiadong Li,