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

Qing Hou; Zi Dong Zhang; Zhi Cheng Shi; Run Hua Fan; Jing Li; Dong Yue Zhang

doi:10.4028/www.scientific.net/KEM.512-515.523

Paper Titles

Formation and Evolution of Tribo-Layer on Al₂O₃ and Al₂O₃-Based Ceramics in Sliding against Si₃N₄ under Dry Sliding
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Corrosion Behavior of Al₂O₃ Ceramics in the Acid and Alkaline Solutions
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Hydrothermal Corrosion of Alumina Ceramics under Static and Quasi-Dynamic Conditions
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Influence of the Two Metal Dopant Improves the Specific Surface Area of Alumina in Catalyst Support
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Fabrication and Dielectric Properties of Fe-CNT/Al₂O₃ Bulk Composite Materials
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Research the Performance of Alumina Insulation Material by Freeze-Drying
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The Screening of Modifying Alumina Used in Automotive Catalyst
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Effect of Calcination Temperature on Phase Transformation and Microstructure of Al₂O₃/GdAlO₃ Compound Powder Prepared by Co-Precipitation Method
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Fabrication and Properties of CaAl₁₂O₁₉-Al₂O₃ Composite Ceramics
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Fabrication and Dielectric Properties of...

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

Abstract:

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 of permittivity (ε'') ranged from 137 to 1300 with the frequency, which indicated a good dielectric loss properties.

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Key Engineering Materials (Volumes 512-515)

Pages:

523-526

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.523

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Online since:

June 2012

Authors:

Qing Hou, Zi Dong Zhang, Zhi Cheng Shi, Run Hua Fan, Jing Li, Dong Yue Zhang

Keywords:

Carbon Nanotube (CN), Dielectric Property, Fe/Al₂O₃ Composites

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