Crystal Growth and High Temperature Piezoelectricity of La3Ta0.5Ga5.5 ? xAlxO14 Crystals
| Autor: | Il Hyoung Jung, Tsuguo Fukuda, Keun Ho Auh |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Analytical chemistry Micro-pulling-down Crystal growth Condensed Matter Physics Electrochemistry Chemical formula Piezoelectricity Electronic Optical and Magnetic Materials Ion Partition coefficient Crystallography Congruent melting Mechanics of Materials Materials Chemistry Ceramics and Composites Electrical and Electronic Engineering |
| Zdroj: | Journal of Electroceramics. 13:471-478 |
| ISSN: | 1573-8663 1385-3449 |
| DOI: | 10.1007/s10832-004-5144-5 |
| Popis: | For the application of high temperature piezoelectric devices, Al3 + substituted La3Ta0.5Ga5.5O14 (LTG) crystals with chemical formula of La3Ta0.5Ga5.5 − xAlxO14 (LTGA) were synthesized and grown by μ-PD (Micro-pulling-down) and Czochralski technique. LTGA compound has been shown to exhibit congruent melting in a wide compositional range without destabilization of the melt during growth, while distribution coefficient of the substituted Al3 + ion was close to unity. LTGA crystals have shown preferable effects for temperature stability on piezoelectric properties in the range from R.T (room temperature) to 500_∘C. |
| Databáze: | OpenAIRE |
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