Mullite phase enhancement in Indian kaolins by addition of vanadium pentoxide

被引：25

作者：

Bagchi, Biswajoy ^{[1
]}

Das, Sukhen ^{[1
]}

Bhattacharya, Alakananda ^{[2
]}

Basu, Ruma ^{[3
]}

Nandy, Papiya ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India

[2] W Bengal State Univ, Dept Phys, Barasat, India

[3] Jogamaya Devi Coll, Dept Phys, Kolkata 700026, India

来源：

APPLIED CLAY SCIENCE | 2010年 / 47卷 / 3-4期

关键词：

Mullite; Clay; Vanadium pentoxide; X-ray diffraction; FTIR; FESEM; MULLITISATION BEHAVIOR; ALUMINA; CLAY; EVOLUTION; SILICA; CRYSTALLIZATION; TRANSFORMATION;

D O I：

10.1016/j.clay.2009.12.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

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 degrees C for 2 h. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：409 / 413

页数：5

共 37 条

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