摘要
测试7.7vol%和15.8vol%In（Sn）2O3（ITO）/石蜡在2～18GHz的介电谱。测定10vol%和20vol%In（Sn）2O3（ITO）/环氧树脂在2～8GHz的反射率。结果显示,ITO材料具有很好的介电损耗。当涂层厚度d=3mm时,两种涂层分别在4.51GHz和6.27GHz有-10.5dB和-14dB的反射率。理论值显示,15.8vol%ITO/石蜡复合材料在4.56～11GHz的反射率低于-10dB,有好的吸波性能。同时分析ITO的介电损耗机理。
The permittivity of 7.7vol% and 15.8vol% ITO/wax composites were measured in the frequency of 2 - 18GHz, respectively. The results revealed that ITO had good dielectric property. Reflection loss of -10. 5dB and-14dB were obtained at 4. 51GHz and 6.27GHz for ITO/Epoxy resin samples of 20vol% and 10vol% , respectively. The theoretical values of 15.8vol% ITO / wax composite exhibited good microwave absorption property （ reflection loss 〈 - 10dB ） in the frequency rang of 4. 56 - 11GHz, with thickness of 3mm. The dielectric loss mechanism of ITO was analyzed.
出处
《航空材料学报》
EI
CAS
CSCD
2008年第2期87-90,共4页
Journal of Aeronautical Materials
基金
国家自然科学基金(No.50372013)
关键词
ITO
介电常数
吸波
反射率
In （ Sn ） 2O3
permittivity
absorption
reflection
