Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix

doi:10.1088/1674-1056/19/12/126102

中国物理B ›› 2010, Vol. 19 ›› Issue (12): 126102-126102.doi: 10.1088/1674-1056/19/12/126102

Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix

朱亚波, 张林, 郭立童, 项东虎

School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China

收稿日期:2010-01-29 修回日期:2010-06-23 出版日期:2010-12-15 发布日期:2010-12-15
基金资助:
Project supported by the Natural Science Foundation of Jiangsu Province of China (Grant No. BK2008129).

Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix

Zhu Ya-Bo(朱亚波)^†, Zhang Lin(张林), Guo Li-Tong(郭立童), and Xiang Dong-Hu(项东虎)

School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China

Received:2010-01-29 Revised:2010-06-23 Online:2010-12-15 Published:2010-12-15
Supported by:
Project supported by the Natural Science Foundation of Jiangsu Province of China (Grant No. BK2008129).

摘要/Abstract

摘要： This paper reports that carbon microcoils are grown through a chemical vapour deposit process, they are then embedded in silicone rubber, and manipulated to parallel with each other along their axes in the resulting composite. The impedance |Z| as well as phase angle θ of both the original carbon microcoil sheets and the aligned carbon microcoil/silicone rubber composites are measured. The results illustrate that carbon microcoils in different forms show different alternating current electric properties. The aligned carbon microcoils in the composites show stable parameters for f<10⁴ Hz but a sharp decrease in both |Z| and θ for frequencies >10⁴ Hz, which will also change as the carbon microcoils are extended. But, the original sheets have a pure resistance with their parameters stable throughout the entire alternating current frequency range investigated.

Abstract: This paper reports that carbon microcoils are grown through a chemical vapour deposit process, they are then embedded in silicone rubber, and manipulated to parallel with each other along their axes in the resulting composite. The impedance |Z| as well as phase angle $\theta$ of both the original carbon microcoil sheets and the aligned carbon microcoil/silicone rubber composites are measured. The results illustrate that carbon microcoils in different forms show different alternating current electric properties. The aligned carbon microcoils in the composites show stable parameters for f<10⁴ Hz but a sharp decrease in both |Z| and $\theta$ for frequencies >10⁴ Hz, which will also change as the carbon microcoils are extended. But, the original sheets have a pure resistance with their parameters stable throughout the entire alternating current frequency range investigated.

Key words: carbon microcoils, impedance, alignment

中图分类号: (Insulators)

72.80.Sk

81.15.Gh (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.))

朱亚波, 张林, 郭立童, 项东虎. Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix[J]. 中国物理B, 2010, 19(12): 126102-126102.

Zhu Ya-Bo(朱亚波), Zhang Lin(张林), Guo Li-Tong(郭立童), and Xiang Dong-Hu(项东虎). Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix[J]. Chin. Phys. B, 2010, 19(12): 126102-126102.

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Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix

Study on the impedance of aligned carbon microcoils embedded in silicone rubber matrix

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