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Porous Magnetorheological Nanocomposites: Dielectric and Electrical Properties | ||
| Innovations in Materials: Current & Future | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 26 بهمن 1393 | ||
| نوع مقاله: Original Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ancr.2015.232 | ||
| نویسندگان | ||
| Aref Naimzad* 1؛ Yousef Hojjat2 | ||
| 1Tarbiat Modares university Mechanical Engineering Faculty Manufacturing Department Metrology & Advanced Mechatronics Lab. | ||
| 2Tarbiat Modares University Mechanical Engineering Faculty | ||
| تاریخ دریافت: 07 مرداد 1393، تاریخ بازنگری: 14 آبان 1393، تاریخ پذیرش: 26 بهمن 1393 | ||
| چکیده | ||
| This paper presents a brief study on electrical and dielectric properties of porous film-shaped magnetorheological nanocomposites (MRNCs) based on room temperature vulcanized (RTV) silicone rubber and nano-sized carbonyl iron particles (CIPs). The electrical and dielectric properties of porous MRNCs were measured at five different filler concentrations. Several experiments were performed to measure the volume resistivity, dielectric constant and dielectric loss. The MRNCs dielectric properties were analyzed with respect to the parameters like frequency and CIPs loadings. The electrical conductivity was studied in terms of volume resistivity. The distribution of internal charge was also measured for each sample using pulsed- electro-acoustic (PEA) method, under a DC electric field. The investigation’s results suggests the porous MRNCs for smart, sensitive and light-weighted structures those benefits from a lower electrical property, charge density and dielectric constants. | ||
| کلیدواژه‌ها | ||
| Charge Density؛ dielectric؛ Permittivity؛ Resistivity؛ Silicone Rubber | ||
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آمار تعداد مشاهده مقاله: 7,636 |
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