Fabrication and Dielectric Properties of Fe-CNT/Al2O3 Bulk Composite Materials

摘要：

　　In this paper,carbon nanotubes (CNT)/Fe powders were synthesized by a simple catalytic pyrolysis routine and the Fe-CNT/Al2O3 bulk composites were fabricated by hot-pressing sintering.The CNT/Fe powders were characterized by X-ray diffraction (XRD) and TGA-DSC.The dielectric properties of the Fe-CNT/Al2O3 bulk composites were measured by using Agilent E4991A impedance analyzer from 100MHz to 1GHz.Both real part and imaginary part of the permittivity increased as added CNT into the composites.The imaginary part ofpermittivity (ε) ranged from 137 to 1300 with the frequency,which indicated a good dielectric loss properties.

关键词： carbon nanotube Fe/Al2O3 composites dielectric properties

作者: Qing Hou Zi-dong Zhang Zhi-cheng Shi Run-hua Fan Jing Li Dong-yue Zhang

作者单位: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education),Shandong University,Jinan,250061,China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 523-526

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）