摘要
分析了SiO2气凝胶高温隔热特性和透波特性,与常用的隔热材料和透波材料对比,SiO2气凝胶具有较低的热导率和较小的介电常数,是一种高温隔热透波性能良好的材料。分析了夹层结构天线罩宽频带透波的原理,介绍了夹层结构天线罩的研究进展。结果显示,SiO2气凝胶材料因其良好的高温隔热透波特性能够满足夹层结构天线罩内层材料的需求,必将在夹层结构天线罩上得到广泛的应用。
The high temperature insulation and wave-transparent characteristics of SiO2 aerogel were analyzed.Compared to insulation materials and wave-transparent materials commonly used,SiO2 aerogel material has a lower thermal conductivity and a lower dielectric constant,is a kind of material with good performance on high temperature insulation and wave-transparent.The principle for wide-band transparent of sandwich structure radome was analyzed,and research progress of the sandwich structure radome was reviewed.The results showed that,because of its high temperature insulation and wave-transparent characteristics,SiO2 aerogel material can meet the needs of the inner materials of the sandwich structure radome,and is bound to be widely used in the sandwich structure radome.
出处
《航天制造技术》
2013年第2期1-4,9,共5页
Aerospace Manufacturing Technology
关键词
SIO2气凝胶
高温隔热
高温透波
夹层结构天线罩
SiO2 aerogel
high temperature insulation
high temperature wave-transparent
sandwich structure radome
