Measurements of Thermoelectric Behavior and Microstructure of Carbon Nanotubes/Carbon Fiber-Cement Based Composite
Thermoelectric behavior and microstructure of carbon nanotubes/carbon fiber(CNTs/CF)-cement based composite have been measured in this study. An self-made experimental setup was applied to test the thermoelectric power (TEP) of the composites. The results show that the higher the CNTs content, the less positive the absolute thermoelectric power is. When CNTs addition incresed to 1.0% by weight of cement, the absolute thermoelectric power changed sign from positive to negative. Scanning electron microscopy (SEM) was used to characterize the morphology of CNTs, CF and the structure of Portland cement-CNTs-CF systems. SEM analysis of the results show that good interfacial adhesion between CNTs and cement matrix is seen with CNTs tightly wrapped by Calcium-Silicate-Hydrate (C-S-H). With the incorporation of CNTs/CF in cement based composite, the cement-CNTs-CF system exhibits a porous microstructure.
Junqing Zuo Wu Yao Junjie Qin Haiyong Cao
Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
国际会议
长沙
英文
242-245
2011-06-30（万方平台首次上网日期，不代表论文的发表时间）