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X-ray diffraction and high-resolution transmission electron microscopy study on A-site ordering of lanthanum-modified lead zirconate titanate relaxor

Published online by Cambridge University Press:  03 March 2011

Fei Fang  and
Xiaowen Zhang
Fei Fang
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
Xiaowen Zhang
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Abstract

The ordering behavior of La-modified lead zirconate titanate relaxor (PLZT 9/65/35) was investigated by use of an x-ray diffractometer (XRD) and high-resolution transmission electron microscopy (HRTEM). It was shown that a {h + 1/2, k + 1/2, 0}-type superlattice exists both in the x-ray diffraction pattern and selected area electron diffraction (SAED) image. High-resolution electron micrographs further demonstrated the existence of the superlattice and exposed the ordered and disordered regions in the lattice level. A model referring to an A-site body-centered pseudo-cubic superstructure was proposed.

Type
Rapid Communication
Information
Journal of Materials Research , Volume 10 , Issue 7 , July 1995 , pp. 1582 - 1584
Copyright
Copyright © Materials Research Society 1995

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References

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