Sen, R and Dutta, S and Das, S K and Basu, S K (1989) Evaluation of a glass ceramic coating for machine-tool slides. Wear, 130 (1). pp. 249-260. ISSN 0043-1648

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With a view to protect steel against mechanical wear and tear under dry sliding conditions, a glass-ceramic coating of composition RO-R′2O-Al2O3-SiO2 (R = Ca, Mg; R′ = Na, K, Li), with TiO2 and P2O5 as nucleation agents, has been applied on steel samples and their performances studied. The method of application of the glass-ceramic coating on steel is also discussed. Wear data have been fed for analysis of variance at 1% and 5% levels of significance and a normal factorial regression has been carried out to obtain a wear equation. The wear and coefficient of friction behaviour for both glass-ceramic-coated and uncoated steel, sliding against cast iron, has been plotted against time to obtain a quantitative measure of the improvement in wear resistance. The studies show that this new class of coating material can be highly useful for specialized engineering and industrial applications, particularly for increasing the life of sliding parts. Although various work has been done to prevent wear and tear of machine tool slides and guides through the use of suitable coatings, most of these technologies available are very costly, bringing down the economic viability of applying such coatings on machine tool slides. Here, a comparatively cheaper coating technology of glass-ceramic on steel has been evaluated statistically for solid-to-solid sliding operation. A wear equation derived from factorial regression for this coating, sliding against cast iron, as well as direct plotting of wear and friction values show an appreciable improvement in wear life for the coated samples.

Item Type: Article
Subjects: Glass
Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 05 Dec 2013 11:45
Last Modified: 20 Mar 2016 12:45

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