- 作者: 丁自豪,吳國輝*,許仁松,莊明和,楊正乾
- 作者服務機構: Department of Applied Chemistry and Materials Science, Chung Cheng Institute of Technology, National Defense University, Tahsi, Taoyuan, Taiwan, R.O.C.
- 中文摘要:
Bamboo charcoal coated with silver (BC/Ag) was prepared by activation and chemical reduction processes
at different AgNO3 contents (10-30 wt.%). The spectroscopic characterizations of the formation
processes of BC/Ag composites were studied using X-ray diffraction, scanning electron microscopy and
transmission electron microscopy. These composites were introduced in epoxy resin to be a microwave
absorber and mixed polyethylene to be an infrared stealth plate.Microwave absorbing properties were investigated
by measuring complex permittivity, complex permeability and reflection loss in the 2-18 and
18-40 GHz microwave frequency range using the free space method. The thermal extinction measurements
in the 3-5 and 8-12 m were done to evaluate the shielding affectivity of infrared. The results
showed that a significant thermal extinction and a wider absorption frequency range could be obtained by
adding silver to bamboo charcoal. - 英文摘要: --
- 中文關鍵字: Bamboo charcoal; Silver; Microwave absorption; Thermal extinction.
- 英文關鍵字: --