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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제21권 제1호
- 발행연도
- 2020.1
- 수록면
- 35 - 41 (7page)
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The aim of this work was to study five (5) selected local raw clay materials from Ghana using different characterizationtechniques such as Thermogravimetric/Differential Thermal Analysis (TG/DTA), X-ray diffraction (XRD), Fourier TransformInfra-red Spectroscopy (FTIR), Scanning Electron Microscopy equipped with Energy Dispersive X-ray Spectroscopy (SEMEDX)and Nitrogen Desorption (Brunauer-Emmett-Teller, BET) specific surface area analysis. The clay samples studied are;Nkroful kaolin (NK), Amanfrom kaolin (AK), Ball clay (BC), Akyem Feldspar (AF) and Akwatia silica (AS). SEM and EDXshow the morphological features of the five clay samples and also confirm the presence of some dominant elementalcompositions such as aluminium and silicon in all the samples. FTIR show that the vibrations spectra in the region around3,600-3,700 cm−1 and 700-800 cm−1 are due to M-OH groups and that at 900-1000 cm−1 corresponds to Si-O-Si modes. BETanalysis gives specific surface area of the clay samples as NK (4.6 m2/g), AK (21.9 m2/g), BC (25.50 m2/g), AS (0.79 m2/g) andAF (0.49 m2/g). X-ray diffraction pattern confirm the presence of quartz as the major reflection in all the samples analysedand only kaolinite reflections appeared in three of the samples (NK, AK and BC). All the kaolinite clays (NK, AK and BC)are suitable starting materials for the fabrication of electroporcelain insulators, catalytic converters and diesel particulate filters.
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