The High-Performance of Cerium Doped Sodium Bismuth Titanate Aurivillirs Phase Material

The effect of Ce substitution at the A-site on the properties of Na0.5Bi4.5Ti4O15 (NBT)–based ceramics was systematically investigated. The substitution at A-site caused distortion of lattice and improved piezoelectric activity correspondingly. The piezoelectric coefficient d33 of the Na0.5Bi4.5-xCexTi4O15 (x=0.03) ceramic was found to be as high as 26 pC/N, together with high mechanical quality factor Q ( 2769 ), and stable piezoelectric properties, demonstrating that the Ce-modified NBT-based materials are promising candidates for high-temperature applications.