Design and Test of New Cement Based Microwave Absorbing Materials

摘要：

Combined with space electromagnetic wave propagation principle,a design idea of space wave impedance matching to advantage absorption and matching for new cement based microwave absorbing materials (CBMAM) is given to aim at the current existing problems for CBMAM in this paper.To test and verify this idea,continuous basalt fiber,spherical expansion perlite with closed pore and graphite are used as components.A new CBMAM characterized with better microwave absorbing properties (the minimum reflectivity is -11.8dB),wide frequency bandwidth (reflectivity less than -10dB reaches 4GHz of bandwidth),better mechanical properties (28d compressive strength is 16.9Mpa,bending strength is 2.27Mpa),is prepared by using 20mm sample between 8 to 18GHz.The results provide a basis to the design and preparation of CBMAM.

关键词： cement based microwave absorbing materials impedance matching microwave transmitting

作者: S.G.Hu K.Tian Q.J.Ding

作者单位: Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education,Wuhan University of Technology,Wuhan 430-070,China

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）