Surface and microstructural characterization of lanthanum modified lead titanate obtained by combustion synthesis

被引：2
|
作者：
De Paula, C. C.
Nascente, P. A. P.
Eiras, J. A.
Garcia, D.
Kiminami, R. H. G. A.
机构：
[1] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
来源：
FERROELECTRICS | 2006年 / 334卷
关键词：
lead lanthanum titanate; combustion synthesis; (Pb; La)TiO3;
D O I：
10.1080/00150190600710500
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Perovskite-type lead lanthanum titanate powders, (Pb,La)TO3 (PLT) were successfully prepared by the combustion synthesis method. The ceramic powders were analyzed by X-ray diffraction (XRD), surface area measurement, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Surface chemical composition was investigated by X-ray photoelectron spectroscopy (XPS), which revealed the presence of La3+, Ti4+, and two Pb species, related to the perovskite and lead oxide phases. The assynthesized product characterization indicated that the type of combustible used, area and glycine, plays an important role in the kinetic and thermochemical parameters of the reaction, and on the obtained material microstructure.
引用
收藏
页码：187 / 195
页数：9
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