Adhikari, Uday Bhanu and Das, Swapan Kumar and Banerjee, Goutam (1998) Characterization of magnesium hydroxy phosphate binder prepared by a coprecipitation technique for refractory application. Industrial Ceramics , 18 (1). pp. 12-15. ISSN 1121-7588

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Precipitates of magnesium hydroxy phosphate compounds were prepared by a coprecipitation technique using various kinds of basic media such as ammonium hydroxide, triethanolamine and their gb combinations in different proportions. The particle size distribution of the coprecipitates were determined by Malvern Analyser and the phase changes during heating were investigated by X-ray diffractometry and DTA techniques. It has been observed that Mg (OH)(2) was the only crystalline phase in the coprecipitate and the crystallinity is markedly influenced by the nature of basic media. Triethanolamine favours the formation of more amorphous phases which ultimately given rise to highest amount of crystallised Mg-3(PO4)(2) at 1000 degrees C by thermal decomposition and rapid solid state reaction with the matrix. Mg-3(PO4)(2), which is formed by the crystallisation of the coprecipitate may play a role as an effective binder for MgO based refractories.

Item Type: Article
Subjects: Refractories
Divisions: Refractory
Depositing User: Bidhan Chaudhuri
Date Deposited: 06 Jul 2012 06:54
Last Modified: 11 Jun 2015 06:27

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