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Preparation of nanocrystalline cordierite-based glass suspensions by the gel-cast process
کد مقاله : 2207-IMES-CONGR
نویسندگان:
حسین برتر اصفهانی *1، Bigan Eftekhari Yekta2، Ali Nasri3
1iran-kerman-shahid bahonar uniuversity
2Associate Professor of of Iran University of Science and Technology
3M. Sc. Student of ShahidBahonar University of Kerman
چکیده مقاله:
The crystallization and mechanical properties of gelcast bodies based on cordierite glass-ceramics was studied. Glass fragments were obtained by quenching the melt in cold water. Effect of polymer values as well as sintering temperature on bending strength of dried and sintered bodies were investigated. It was found that the green strength of AM samples is higher than MAM samples, associated with the inherent strength of the AM, when the polymerization rate is not very fast. The crystallisation was followed by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Crystallization of cordierite-based glass decreases because of increase the heating rate. However, comparison of resulted XRD peak at various diffractions shows that cordierite phase increases because of heating at 930˚C. As a result microstructure was characterized by small-sized crystal (<200 nm), with a uniform grain-size distribution.
کلیدواژه ها:
Gelcasting, monomer solution, glass ceramics, cordierite.
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