Abstract
In line with ACC's stride towards new materials, the Research & Consultancy Directorate of the company has successfully developed and scaled up the process for manufacture of high and ultra high purity alumina powders at semi-commercial levels for high performance, structural and electronic applications.Among the various applications of high purity alumina powders, wear resistant parts and thermal barrier coatings are of prime importance for the domestic market. In order to optimise the powder characteristics for wear resistant applications, a study was undertaken to evaluate the influence of various parameters such as chemical purity, phase composition, particle size distribution, specific surface area (BET) of starting powders and their effect on sintering and wear properties. The paper highlights the influence of powder characteristics on sintering and wear resistance properties of the fabricated grinding media during milling.
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