Neutron diffraction study of polycrystalline Ca1−xSrxTiO3 mixed perovskite materials

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Date
2005-11-27
Journal Title
Journal ISSN
Volume Title
Publisher
The Bragg Institute, Australian Nuclear Science and Technology Organisation
Abstract
The mixed perovskite samples, Ca1−xSrxTiO3, produced as solid ceramic materials, have been characterized using dynamic modulus and internal friction. These provide evidence for structural instabilities which have then been studied in detail using high-resolution neutron diffraction at particular temperatures using selected samples. Structural refinements indicate a low-temperature structural distortion to an orthorhombic Pbcm structure doubled along the c-axis. Details of the results and their analysis are presented and discussed in relation to other literature data for these mixed perovskite systems. © The Authors
Description
Keywords
Neutron diffraction, Polycrystals, Perovskite, Ceramics, Materials, Temperature range 0065-0273 K, Internal friction, Calcium, Strontium titanates
Citation
Daniels, J. E., Elcombe, M. M., Finlayson, T. R., & Vance, E. R. (2006). Neutron diffraction study of polycrystalline Ca1−xSrxTiO3 mixed perovskite materials. Paper presented at the Eighth International Conference on Neutron Scattering ICNS 2005: "Neutrons for structure and dynamics - a new era", Sydney Convention & Exhibition Centre, Sydney, Australia, 27 November-2 December 2005. In Final Programme and Abstract Book, (pp. 195).