A Possibility to Decrease the Sintering Temperature of Corundum Ceramics
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2011, Vol 34, Issue 3
Abstract
The ceramics consisting of more than 95%Al2O3 is called corundum ceramics. The name comes from the name of the α-crystalline form of the aluminum oxide - corundum. The basic technological process influencing the properties of this ceramic is the temperature and the duration of the sintering process. Sintering aids are used to improve sintering and to control grain size. The possibility to use CaTiO3 as sintering aid is investigated. This substance lowers the sintering temperature with more than 100 oC and at the same time the mechanical properties are preserved. The compressive strength is more than 2000 MPa and the flexural strength is more than 200 MPa.
Authors and Affiliations
Vladimir PETKOV, Radoslav VALOV, Dimitar TEODOSSIEV, Ina YANKOVA
Keywords
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