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The Influence of Composition and Temperature on the Phases in Sr1−xBaxZrO3 Perovskites: A High-Resolution Powder Diffraction Study

✍ Scribed by B.J. Kennedy; C.J. Howard; G.J. Thorogood; J.R. Hester


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
267 KB
Volume
161
Category
Article
ISSN
0022-4596

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✦ Synopsis


High-resolution synchrotron X-ray di4raction measurements on a series of polycrystalline samples of Sr 1؊x Ba x ZrO 3 at room temperature show that the symmetry increases with increasing Ba content, the sequence of phases being orthorhombic Pnma, orthorhombic Imma, tetragonal I4/mcm, and cubic Pm3 m. The e4ect of temperature has also been studied for a number of compositions and indicates that the same series of phases is present. The transition temperatures decrease with increasing Ba content.


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