کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7856953 | 1508890 | 2013 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dielectric properties of carbon nanofibre/alumina composites
ترجمه فارسی عنوان
خواص دی الکتریک کامپوزیت نانوفیبری کربن / آلومینا
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
Carbon nanofibre (CNF)/Al2O3 composites with concentrations between 1 and 9Â vol.% of CNF were prepared by the traditional ceramic processing route followed by spark plasma sintering. The dielectric properties of these composites have been studied in a broad frequency range from mHz to the infrared range. Unlike conventional composites, the percolation threshold in this system is more complex depending on the particles topology. Positive and negative variations by several orders of magnitude in the low frequency AC conductivity have been detected for concentrations near the threshold at â¼2Â vol.% of CNF. To explain these results, a modified percolation model has been proposed which takes into consideration the effect of the concentration of the filler on the microstructure of the composite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 57, June 2013, Pages 380-387
Journal: Carbon - Volume 57, June 2013, Pages 380-387
نویسندگان
Lucia Fernandez-Garcia, Marta Suárez, Jose Luis Menéndez, Carlos Pecharromán, Dmitry Nuzhnyy, Viktor Bovtun, Maxim Savinov, Martin Kempa, Jan Petzelt,