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通过简单模拟高真空、太阳紫外辐射、冷热交变等空间环境条件,对拟用于飞行器示踪的发光材料SrAl2O4:Eu2+,Dy3+、ZnO:Eu3+,Li1+以及SiO2:Eu3+,Li1+进行了空间环境稳定性试验研究,分别检测了3种材料在高真空条件下的耐强紫外辐射、抗老化、抗热震性能。结果表明,长余辉发光材料SrAl2O4:Eu2+,Dy3+经各试验后发光强度均有一定程度的降低,但由于其自身发光强度很高,下降幅度不影响其在“背日面”的示踪功用;而ZnO:Eu3+,Li1+较SiO2:Eu3+,Li1+的空间环境稳定性比较优越,是适合于“向日面”示踪的发光材料。
The luminescence materials SrAl2O4: Eu2 +, Dy3 +, ZnO: Eu3 +, Li1 + and SiO2: Eu3 +, Li1 + were used to space the spacecraft for tracer tracking by simulating the space environment conditions such as high vacuum, solar ultraviolet radiation, The stability of the test study, respectively, three kinds of materials were tested under high vacuum UV radiation resistance, anti-aging, thermal shock resistance. The results show that the luminescent intensity of SrAl2O4: Eu2 +, Dy3 + with long afterglow luminescent materials decreases to a certain extent after each test. However, because of its high luminescence intensity, the decreasing amplitude does not affect its tracking function on “dorsal surface” The spatial stability of ZnO: Eu3 +, Li1 + is better than that of SiO2: Eu3 + and Li1 +, and it is a suitable luminescent material for “tracing to the sun”.