Improvement in Dispersion Properties of Graphite Powder by Al(OH)3 Coating through Turbidimetry Measurements

Revision 07.10.2009, 16.11.2009

Volume 2, Issue 2, Pages 107-109


Surface treatment is one of the most efficient ways to improve the water wettability and dispersion properties of graphite powders used in refractory castables. In this study, the above mentioned properties of graphite powders coated with aluminium hydroxide (Al(OH)3) via mechanical milling were investigated. The results showed that dispersion properties of the graphite powders were greatly improved when the amount of coated aluminium hydroxide was more than 5 % by weight. The results revealed further that dispersion properties of graphite powders increased with increasing mechanical milling time. 


rngraphite powders, Al(OH)3 coating, mechanical milling, turbidimetryrn


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