کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10364177 | 871501 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The synthesis and dielectric study of BaTiO3/polyimide nanocomposite films
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
سخت افزارها و معماری
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The synthesis and dielectric study of BaTiO3/polyimide nanocomposite films The synthesis and dielectric study of BaTiO3/polyimide nanocomposite films](/preview/png/10364177.png)
چکیده انگلیسی
Polymer-ceramic dielectric composites have been of great interest because they combine the processability of polymers with the desired dielectric properties of the ceramics. A novel, simple method to make thin, homogeneous composite films with varying amounts of ceramic filler content has been proposed. Nanocomposite thick films of barium titanate (BaTiO3) in polyimide (PI) from 3,3â²,4,4â²-benzophenone tetra carboxylic dianhydride, 4,4â²-oxy dianiline have been successfully prepared by in situ imidization using n-methyl pyrrolidinone as the solvent. The dielectric properties of the nanocomposite films were discussed for various filler volume contents. These nanocomposite films exhibited stable dielectric properties in the various frequency ranges. Films were characterized by fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermo gravimetric analysis (TGA), and differential scanning calorimetry (DSC). The curing cycle was optimized using FTIR. XRD results confirm BaTiO3 particles remain unchanged in the PI matrix and no undesired secondary phases are present in the films. Their glass transition behavior and thermal stability were investigated by DSC and TGA, and the films were stable to 300 °C. Scanning electron microscope images show that the BaTiO3 phase is well dispersed in the polymer matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronic Engineering - Volume 82, Issue 1, September 2005, Pages 71-83
Journal: Microelectronic Engineering - Volume 82, Issue 1, September 2005, Pages 71-83
نویسندگان
Naga Gopi Devaraju, Eung Soo Kim, Burtrand I Lee,