Publications Repository - Gdańsk University of Technology

The yttrium, iron and niobium doped-SrTiO3 powders have been successfully fabricated by a modified low–temperature synthesis method from a polymer complex. The usage of strontium hydroxide precursor instead of conventional strontium nitrate or strontium carbonate provides to the possibility of significant decrease of annealing temperature. It allows to prepare a material with sphere-shape grains of nanometric size (15–70 nm). The results of thermal analysis indicate that the crystallization of precursor takes place at different stages. The product after heat treatment at 600 °C for 3 h in air was also characterized by X-Ray diffraction method (XRD) and Fourier transform – infrared spectroscopy (FT-IR). After the crystallization and the impurity removal process, a single-phase material was obtained in case of all analyzed samples. The morphology of obtained nano-powders was also studied by a scanning electron microscopy (SEM). It can be concluded, that this method allows obtaining a perovskite phase of a metal doped SrTiO3 with nanometric particles.

Authors

• dr inż. Tadeusz Miruszewski link open in new tab ,
• mgr inż. Paweł Gdaniec link open in new tab ,
• dr hab. inż. Jakub Karczewski link open in new tab ,
• dr hab. inż. Beata Bochentyn link open in new tab ,
• mgr Krystyna Szaniawska link open in new tab ,
• dr inż. Piotr Kupracz link open in new tab ,
• dr inż. Marta Prześniak-Welenc link open in new tab ,
• prof. dr hab. inż. Bogusław Kusz link open in new tab