کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898138 | 1510131 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characteristics of porous mullite developed from clay and AlF3·3H2O
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characteristics of porous mullite developed from clay and AlF3·3H2O Characteristics of porous mullite developed from clay and AlF3·3H2O](/preview/png/7898138.png)
چکیده انگلیسی
Porous mullite with interlocked needle shape microstructure was developed from China clay and aluminium fluoride trihydrate (AlF3·3H2O). The effects of various parameters like sintering temperature, sintering time and the amount of AlF3·3H2O on the phase evolution, microstructure and porosity have been studied. Quantitative analysis of mullite was carried out using X-ray diffraction combined with Rietveld-RIR method (Internal standard method). Porous mullite ceramics with 62% open porosity have been prepared at a relatively lower temperature of 1400â¯Â°C. The results show that the nucleation of mullite can be achieved from 700â¯Â°C onwards using hydrated aluminium fluoride without the formation of intermediate topaz crystals. The high amount of water vapour produced within the system during the in-situ reaction has a crucial role in deciding the reaction mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 10, August 2018, Pages 3673-3680
Journal: Journal of the European Ceramic Society - Volume 38, Issue 10, August 2018, Pages 3673-3680
نویسندگان
Mohammed Rashad, M. Balasubramanian,