高温光纤在熔盐中的腐蚀实验研究  

Experimental study on corrosion of high temperature fiber in molten salt

作　　者：赵翠兰[1] 杨群[1] 周雪梅[1] 何绥霞[1] ZHAO Cuilan;YANG Qun;ZHOU Xuemei;HE Suixia(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China)

机构地区：[1]中国科学院上海应用物理研究所嘉定园区,上海201800

出　　处：《核技术》2018年第4期90-94,共5页Nuclear Techniques

基　　金：中国科学院战略性先导科技专项(No.XD02001005)资助~~

摘　　要：高温光纤耐温和耐腐蚀主要取决于表面的涂覆层,为了测试可以耐受高温氟盐腐蚀的光纤,采用镀金光纤进行实验。将镀金光纤分别置于600oC及650oC熔融状态的氟盐中进行实验检测,经过在扫描电镜下观察分析,光纤镀金层完整,未见明显腐蚀迹象,可以考虑将其应用在熔盐堆上进行短时温度测量。[Background] The property of temperature-and corrosion-resistance of high temperature optical fiber depends on the coating layer on the surface. [Purpose] This study aims to find an optical fiber withstanding high temperature fluoride salt corrosion. [Methods] Gold-plated optical fiber was selected for experimental test in the fluoride salt of the molten state at temperatures of 600 oC and 650 oC. The samples were taken out after 24 h steeped in the high temperature molten salt, and then observed under the scanning electron microscope（SEM）. [Results] The SEM images of gold plating layer of the optical fiber show that the surface of the fiber remained intact, and there is no obvious sign of corrosion. [Conclusion] It can be applied to the molten salt reactor for the short-time temperature measurement.

关 键 词：高温光纤 光纤测温 熔盐 

分 类 号：TL426[核科学技术—核技术及应用]