【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。更多还原

【Abstract】 [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.更多还原