Structural and morphological characterization of rare earth modified lead titanate

Cerâmica

F. C. D. Lemos²  D. M. A. Melo²  P. S. De Lima²  C. A. Paskocimas¹  E. Longo¹  J. E.c. Da Silva¹ 

[1] ,UFRN Departamento de Química Natal RN

关键词: PbTiO3;    rare earth;    perovskite;    Pechini method;    PbTiO3;    terra rara;    perovsquita;    método Pechini;   

DOI  :  10.1590/S0366-69132007000400017

来源: SciELO

【 摘 要 】

Rare earth modified lead titanate powders Pb1-xRExTiO3 (REPT), x = 0.01, 0.05, 0.07 and RE = Yb, Y, were prepared by the Pechini method. The materials were calcined under flowing oxygen at different temperatures from 300 to 700 ºC. Nanostructured REPT were investigated using X-ray diffraction, scanning electron microscopy and surface area analysis (BET). The results suggest that the modifier cation incorporated into the system has notable influence in the microstructure and a notable decrease in the crystallite sizes.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License