journal article·2010-02

Mullite phase enhancement in Indian kaolins by addition of vanadium pentoxide

Biswajoy Bagchi, Sukhen Das, Alakananda Bhattacharya, Ruma Basu, Papiya Nandy

Applied Clay Science· Volume 47· Issue 3-4
Publisher page

Abstract

Abstract Mullite phase development in Indian kaolinites was investigated in the presence of vanadium pentoxide and characterized by X-ray diffraction, FESEM and FTIR spectroscopy. The addition of V2O5 markedly enhanced the amount of mullite phase and also lowered the mullitization temperature. The mullite phase was highly crystalline with rod shaped particles of average dimensions of 350–500 nm and 70–100 nm. A maximum of 27% increase in mullite phase was obtained at 7% (by mass) V2O5 after sintering at 1000 °C for 2 h.
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Research context

OpenAlex topics: Advanced ceramic materials synthesis · Nuclear materials and radiation effects · Recycling and utilization of industrial and municipal waste in materials production

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