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Structural Characterization of the Complex Perovskites Ba1−xLaxTi1−xCrxO3

✍ Scribed by Guobao Li; Yoshiaki Uesu; Kay Kohn

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
237 KB
Volume
164
Category
Article
ISSN
0022-4596

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✦ Synopsis

The series Ba 1؊x La x Ti 1؊x Cr x O 3 (04x41) was synthesized at 14003C for about 60 h. Their structure was carefully analyzed by the use of powder X-ray di4raction and Rietveld analysis software GSAS (General Structure Analysis System). Four solid solutions are found in this series: tetragonal solid solution Ba 1؊x La x Ti 1؊x Cr x O 3 (04x40.029), cubic solid solution Ba 1؊x La x Ti 1؊x Cr x O 3 (0.03654x40.600), rhombohedral solid solution Ba 1؊x La x Ti 1؊x Cr x O 3 (0.7004x40.873), and orthorhombic solid solution Ba 1؊x La x Ti 1؊x Cr x O 3 (0.9564x41). There are corresponding two-phase regions between the adjacent two solid solutions. The detailed lattice parameters are presented. The relationship between the lattice parameters and the composition of the solid solutions is developed.

2002 Elsevier Science (USA)

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