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Journal of Ultrafine Grained and Nanostructured Materials، جلد ۵۴، شماره ۲، صفحات ۱۹۲-۱۹۷
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Piezoelectric properties of hot compression molded PVDF/SiC nanocomposites |
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| چکیده انگلیسی مقاله |
Poly(vinylidene fluoride), PVDF, has been studied extensively because of its outstanding piezoelectric properties. PVDF shows five crystalline polymorphs known as α, β, γ, δ, and ε phases. Among them, the β phase exhibits piezoelectric properties, but the α phase is thermodynamically more stable. The incorporation of additives into PVDF can promote β phase formation. In this study, PVDF-nano SiC composites with different SiC contents were fabricated through hot compression molding and the effects of SiC on the crystal structure, crystallinity and piezoelectric properties of PVDF were studied. The microstructure of the composite samples was investigated by SEM. The prepared samples were perfectly dense with a density more than 97% of the theoretical density. The amount of β phase was determined by FTIR analysis and the crystallinity of the PVDF was deduced from DSC analysis. Finally the piezoelectric properties of the samples were measured by a piezotester. The results showed that by increasing SiC content up to 1 wt%, the amount of β phase, crystallinity and sensitivity of the samples increased and then decreased afterwards. |
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| کلیدواژه‌های انگلیسی مقاله |
Piezoelectric Polymer, Polyvinylidene Fluoride, Silicon carbide, Hot Compression Molding, Beta phase |
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| نویسندگان مقاله |
Mina Rasoolzadeh |
Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Iran
Zahra Sherafat |
Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Iran
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| نشانی اینترنتی |
https://jufgnsm.ut.ac.ir/article_85175_8afe96c57386ad8f47eb51a3e2fcae10.pdf |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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