Novel high dielectric constant and low loss PTFE/CNT composites
文献类型：期刊论文
| 作者 | Peng, Haiyi1; Ren, Haishen1; Dang, Mingzhao1; Zhang, Yi; Yao, Xiaogang; Lin, Huixing |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2018 |
| 卷号 | 44期号:14页码:16556 |
| ISSN号 | 0272-8842 |
| 关键词 | Sintering Composites Dielectric properties PTFE |
| DOI | 10.1016/j.ceramint.2018.06.077 |
| 英文摘要 | Spherical Ca(0.5)5Nd(0.3)TiO(3) ceramic filled polytetrafluoroethylene composites (abbreviated as PTFE/CNT) with different filler volume fractions were prepared. The effects of filler volume fraction on microstructure, dielectric properties and thermal property were studied by scanning electron microscope, vector network analyzer and thermal dilatometer, respectively. The SEM results show that spherical particles are advantageous to reduce the porosity in the interphase which would increase the dielectric loss. Moreover, both the dielectric constant and dielectric loss increased with the increasing volume fraction of CNT microspheres. The high dielectric constant and low dielectric loss composite can be prepared when the ceramic volume fraction is 50 V%: epsilon(r) = 12, tan delta = 8.5 x 10(-4) (at 10 GHz). Different models were used to predict the dielectric constant of composite, and the effective medium theory shows the least deviation from the experiment. The experimental coefficient of thermal expansions of composites with different volume fractions were less than theoretical data due to the change from loosely bound polymer chain to tightly bound polymer chain which would restrain the coefficient of thermal expansions of composites. |
| 学科主题 | Materials Science, Ceramics |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000442714100056 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24649]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Informat Mat & Devices Res Ctr, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Haiyi,Ren, Haishen,Dang, Mingzhao,et al. Novel high dielectric constant and low loss PTFE/CNT composites[J]. CERAMICS INTERNATIONAL,2018,44(14):16556, 16560. |
| APA | Peng, Haiyi,Ren, Haishen,Dang, Mingzhao,Zhang, Yi,Yao, Xiaogang,&Lin, Huixing.(2018).Novel high dielectric constant and low loss PTFE/CNT composites.CERAMICS INTERNATIONAL,44(14),16556. |
| MLA | Peng, Haiyi,et al."Novel high dielectric constant and low loss PTFE/CNT composites".CERAMICS INTERNATIONAL 44.14(2018):16556. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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