Study on a new type of pyroelectric materials with structure of tourmaline
| Autor: | Kun Shen, Guojun Zhou, Changchun Zhao, Zhenjun Fan, You Shan, Kairen Chen, Xinghui Gai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Work (thermodynamics) Materials science Tourmaline Condensed matter physics Process Chemistry and Technology 02 engineering and technology Type (model theory) 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Pyroelectricity Electric dipole moment Distortion 0103 physical sciences Materials Chemistry Ceramics and Composites Tetrahedron Deformation (engineering) 0210 nano-technology |
| Zdroj: | Ceramics International. 45:10684-10690 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2019.02.139 |
| Popis: | Pyroelectricity is mainly affected by the structure of materials. To explore the influence of the structure on pyroelectricity, a new type of pyroelectric materials with structure of tourmaline consisting of Li9Mg3[PO4]4F3, Ba3Sr4(BO3)3F5 and tourmaline have been systematically studied in this work. Based on the comparison results of the pyroelectric coefficient of Li9Mg3[PO4]4F3 and Ba3Sr4(BO3)3F5 after heating and the variations of electric dipole moment, it suggests the tetrahedron is less stable than trigon, and is easily to cause the distortion and deformation of structure, which leads to the great enhancement of pyroelectricity. Additionally, it can find that the tetrahedron has the most contribution to the pyroelectricity by comparing the pyroelectric coefficient and total electric dipole moment of Li9Mg3[PO4]4F3, Ba3Sr4(BO3)3F5 and tourmaline which have different polyhedrons. |
| Databáze: | OpenAIRE |
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