Fabrication and microwave characteristics of Fe3O4/C composites
Fe3O4/C composites were prepared by using Fe and polyacrylonitrile (PAN) as precursors,and then heat-treated at temperatures of 600,700 and 800 ℃,respectively.The phase composition of the composites at different temperatures was analyzed by X-ray diffraction,and Fe reacted with O from PAN to form Fe3O4,which contributed to the improvement of magnetic loss of the carbon matrix.Electromagnetic and microwave absorption properties of the composites were investigated.The results show that the values of real and imaginary part of permittivity were all increased as the temperature increasing,and also the microwave absorption capability was improved.
Fe3O4/C composites heat treatment temperatures permittivity permeability microwave absorption
Wen Wang Chengguo Wang Yu Guo
Research Center of Carbon Fiber, Key Laboratory for Liquid-Solid Structural Evolution and Processing North Research Institute of Materials, Shandong Jinan 250031
国际会议
厦门
英文
146-149
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）