Influence of Thermal-Shock Experiment on Material Properties of Fused Silica Ceramic Radome
LIU Shiyang
LI Fei
WANG Tao
WANG Dong
REN Zhiheng
ZHANG Jian
Abstract：Being low at expansion coefficient,low at heat-conductivity coefficient,low at permittivity and at dielectric loss,good in corrosion resistance,and high at thermal-stability,fused silica is sometimes thought of as being the promising candidate for radome in aero-craft.In the present study,researchers re-veal the influence of thermal-shock experiment on the material properties of fused silica radome via me-chanical/thermal tests,scanning electron microscopy,and X-Ray diffraction.It is found that mechanical strength of fused silica is incremental after thermal-shock experiment.And the reason is that the occur-rence of diffusion migration happens during the experiment to make the fused silica particles fused and re-combined flakily.In addition,the effects of thermal-shock experiment on expansion coefficient,heat-con-ductivity,permittivity and dielectric loss are comparatively minor.
Keywords：fused silica ceramicthermal-shockmaterial propertiesmicrostructure
Publication Date：2024-10-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 76-81 )