KEM 2009 DOI: 10.4028/www.scientific.net/kem.409.330 View full text
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Nina Pavlovic, Dragan Rajnovic, L. Sidjanin, Vladimir V. Srdic

Abstract: Cerium- and lanthanum- substituted bismuth titanate (Bi4-xAxTi3O12; where A=La or Ce, and x=0, 0.5 and 1) ceramics were prepared from nanopowders synthesized by coprecipitation method. The as-synthesized powders were calcined, uniaxially pressed and finally sintered at 1050°C. It was shown that sintering behaviour, phase composition and grain morphology of the obtained ceramics were influenced by the presence of lanthanum and especially cerium ions in the titanate structure. Mechanical properties (hardness and…

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