Thermal variations of structural parameters of \(\mathrm{Li}_{t_{-x}} \mathrm{H}_{x} \mathrm{IO}_{3}\) are reported between 10 and \(380 \mathrm{~K}\), and are compared to isotypic \(\alpha\) - \(\mathrm{LiO}_{3}\) in the same temperature range. Beside the presence of a weakly bound, ratudomly distr
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
No coin nor oath required. For personal study only.
✦ 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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