【摘要】 分别采用液相和固相制备方法合成堇青石粉料 ,利用XRD、TG -DTA、SEM和红外辐射测试等研究方法研究了合成样品的结构和红外辐射性能。结果表明 ,两种方法合成的堇青石在室温下的法向全波段红外辐射率均达到 0 .84以上 ,而且液相合成样品的红外辐射率高于固相样品 ,这可归于合成粉料颗粒形态对红外辐射性能的影响。更多还原

【Abstract】 Cordierite powders were prepared by liquid and solid methods respectively,and infrared rediant characteristics of the powders were measured.The microstructure were investigated by XRD,SEM and TG-DTA.The results show that infrared emissivities of Cordierite powders synthesized respectively by two methods exceed 0.84.Moreover,the powders synthesized by liquid method exhibits higher infrared emissivities than those of powder synthesized by solid method,which can be attributed to the influence of powder morphology on infrared rediant properties.更多还原