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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 29  1970
Influence of Minor Additions on the Sintering Behaviour of Beryllium Oxide
R. BHAT AND v. K. MOORTHY
Pages : 72-78
DOI : 10.1080/0371750X.1970.10855728
Abstract
Influence of 1% addition of minor constituents such as MgO, Ti02, Fe20 3 on the sintering behaviour of beryllium oxide, both in air and in vacuum, has been studied at different sintering temperatures from 1100-1500C and for soaking periods of 2, 4, and 16 hrs. It was noticed that additions promote densification, more so, in air sintering and at lower temperatures (1 l00-1300C). At higher temperatures (over 1300C} the influence was not significantly noticeable as the density of the pellets of pure BeO was fairly high-especially so in vacuum sintering. A typical value of the density attained by BeO with iron oxide addition is 2.84 gmfcc at temperatures above 1200C in air or in vacuum. The samples with magnesia additions tend to be translucent and those with titania and iron oxide additions coloured, the colour depending on the atmosphere. An attempt has been made to explain the role of the additions in promoting the sinterability.
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