Study of Radiative Properties of Perovskite-Type Compound
With the demand of developing miniature spacecrafts, smart thermal control coatings will become a more and more important measure for thermal management in future spacecrafts. Thermochromic materials, i.e., the materials with temperature-dependent radiative properties, can be used to prepare such smart thermal control coatings. Besides the temperature, the components of the materials exert the radiative properties of perovskite-type. In this paper, we are concentrated on two sorts of perovskite-type compounds La1-xAxMnO3(A=Calcium, Strontium). The conventional solid-state reaction method is used to synthesize a series of samples of perovskite-type compounds La1-xSrxMnO3(x=0.1, 0.175, and 0.3) and La0.7Ca0.2Sr0.1MnO3.The structures of the compounds are characterized by X-ray diffraction (XRD). Their emissivity is measured at different temperature levels (243-343 K). The spectral reflectance is measured in a wide frequency (150-40 000 cm-1). The effects of temperature and component fraction on the radiative properties and Curie temperature of the materials are discussed from the experimental data.
Desong Fan Qiang Li Yimin Xuan
School of Power Engineering Nanjing University of Science & Technology Nanjing, China, 210094
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
1074-1077
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）