A comprehensive study of the phase diagram of KxNa1-xNbO3
The phase diagram of lead-free piezoelectric Kx Na1-x NbO3 has been studied, with particular focus on the proposed morphotropic phase boundaries, by powder and single crystal x-ray diffraction. The tilt system and cation displacement has been mapped out as a function of temperature and composition,...
| Main Authors: | , , , |
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| Format: | Journal article |
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2009
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| _version_ | 1797087816931344384 |
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| author | Baker, D Thomas, P Zhang, N Glazer, A |
| author_facet | Baker, D Thomas, P Zhang, N Glazer, A |
| author_sort | Baker, D |
| collection | OXFORD |
| description | The phase diagram of lead-free piezoelectric Kx Na1-x NbO3 has been studied, with particular focus on the proposed morphotropic phase boundaries, by powder and single crystal x-ray diffraction. The tilt system and cation displacement has been mapped out as a function of temperature and composition, highlighting changes in the oxygen octahedra at x=0.2 and x=0.4 at room temperature. The orthorhombic to monoclinic boundary at x=0.5 has been investigated, with a subtle change in the structure observed. The conclusion is that Kx Na1-x NbO3 does not display a morphotropic phase boundary comparable with that in lead zirconate titanate, and that the most significant structural change as a function of composition occurs at x=0.2 because of the change of the tilt system. © 2009 American Institute of Physics. |
| first_indexed | 2024-03-07T02:41:04Z |
| format | Journal article |
| id | oxford-uuid:aa7977b8-0fa6-496d-9aa6-4a44520cd12c |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:41:04Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:aa7977b8-0fa6-496d-9aa6-4a44520cd12c2022-03-27T03:15:17ZA comprehensive study of the phase diagram of KxNa1-xNbO3Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:aa7977b8-0fa6-496d-9aa6-4a44520cd12cSymplectic Elements at Oxford2009Baker, DThomas, PZhang, NGlazer, AThe phase diagram of lead-free piezoelectric Kx Na1-x NbO3 has been studied, with particular focus on the proposed morphotropic phase boundaries, by powder and single crystal x-ray diffraction. The tilt system and cation displacement has been mapped out as a function of temperature and composition, highlighting changes in the oxygen octahedra at x=0.2 and x=0.4 at room temperature. The orthorhombic to monoclinic boundary at x=0.5 has been investigated, with a subtle change in the structure observed. The conclusion is that Kx Na1-x NbO3 does not display a morphotropic phase boundary comparable with that in lead zirconate titanate, and that the most significant structural change as a function of composition occurs at x=0.2 because of the change of the tilt system. © 2009 American Institute of Physics. |
| spellingShingle | Baker, D Thomas, P Zhang, N Glazer, A A comprehensive study of the phase diagram of KxNa1-xNbO3 |
| title | A comprehensive study of the phase diagram of KxNa1-xNbO3 |
| title_full | A comprehensive study of the phase diagram of KxNa1-xNbO3 |
| title_fullStr | A comprehensive study of the phase diagram of KxNa1-xNbO3 |
| title_full_unstemmed | A comprehensive study of the phase diagram of KxNa1-xNbO3 |
| title_short | A comprehensive study of the phase diagram of KxNa1-xNbO3 |
| title_sort | comprehensive study of the phase diagram of kxna1 xnbo3 |
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