Effect of SrTiO3content on the growth of (100−x)(K0.5Na0.5)NbO3–xSrTiO3lead-free piezoelectric single crystals grown by the solid-state crystal growth method
| Autor: | J. G. Fisher, S.-Y. Ko, M. U. Farooq |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Analytical chemistry Crystal growth 02 engineering and technology Abnormal grain growth 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Industrial and Manufacturing Engineering Grain growth Crystallography visual_art 0103 physical sciences Ceramics and Composites visual_art.visual_art_medium Mixed oxide Ceramic 0210 nano-technology Single crystal Seed crystal |
| Zdroj: | Advances in Applied Ceramics. 115:81-88 |
| ISSN: | 1743-6761 1743-6753 |
| DOI: | 10.1080/17436753.2015.1109759 |
| Popis: | In the present work, the single crystal growth by solid-state crystal growth of (100−x)(K0.5Na0.5)NbO3–xSrTiO3, where x = 0,1,2,3 mol-%, has been examined in order to study the effect of SrTiO3 content on single crystal growth. Powders were prepared by the conventional mixed oxide method. KTaO3 seed crystals were buried in the powders, pressed into pellets and sintered at 1100°C for 1, 3, 5 and 10 h. Single crystals of the ceramic compositions grew onto the seeds. For the (K0.5Na0.5)NbO3 sample, both single crystal growth and abnormal grain growth in the matrix began to take place within 1 h. As the amount of SrTiO3 increased, the onset of both single crystal growth and abnormal grain growth were delayed. The effect of SrTiO3 addition on the single crystal and matrix grain growth behaviour is explained in terms of the mixed control theory of grain growth. |
| Databáze: | OpenAIRE |
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