Production, Sintering and Mechanical Properties of Ca₂MgWO₆, a New Complex Cubic Perovskite Ceramic

Abstract:

In the present work we have carried out production and characterization of a new complex cubic perovskite ceramic Ca₂MgWO₆ to evaluate its application viability as inert material for petroleum industry. Ca₂MgWO₆ was produced by thermo-mechanical processing and calcinations at 1.200°C, using stoichiometric amounts of constituent chemicals CaCO₃, MgO and WO₃. The calcined material was examined by x-ray diffraction, which identified the phase formation Ca₂MgWO₆. Calcined material was powdered in a ball mill, compacted as circular discs and subjected to sintering at temperatures of 1.250, 1.300 and 1.350°C. The powders, both those employed in the calcined pellets as those produced by the mill, were characterized by size distribution. The sintered discs were characterized by SEM. The results showed that the ceramics sintered at 1.250°C presented better results in terms of microstructural features and mechanical properties for their possible application as inert material for petroleum industry.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 731-735
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.731
• Online since: August 2012
• Authors: José Carlos da Silva Oliveira, Ricardo Arthur Sanguinetti Ferreira, Yogendra Prasad Yadava
• Keywords: Ca₂MgWO₆, Perovskite, Temperature Sensors

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