氧化石墨烯/Er2O3复合阻氚涂层制备工艺及性能研究  

Preparation of GO/Er2O3 composite coating for tritium permeation barrier and study on its properties

作　　者：张倩[1,2] 王伟[1] 季翔[1] 张思纬[1] 邵宗明[1,2] ZHANG Qian;WANG Wei;JI Xiang;ZHANG Si-wei;SHAO Zong-ming(Key Laboratory of Neutronics and Radiation Safety,Institute of Nuclear Energy Safety Technology,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院核能安全技术研究所,中子输运理论与辐射安全重点实验室,安徽合肥230031 [2]中国科学技术大学,安徽合肥230026

出　　处：《现代化工》2020年第1期124-128,共5页Modern Chemical Industry

基　　金：国家自然科学基金(51802308)

摘　　要：以醋酸铒四水合物(C6H9ErO6·4H2O)为前驱体,乙二醇甲醚为溶剂,二乙醇胺为络合剂采用溶胶-凝胶法在中国抗中子辐照钢(CLAM)基体表面制备Er2O3阻氚涂层。随后采用旋涂法在Er2O3涂层制备一层氧化石墨烯(GO),得到GO/Er2O3复合涂层。利用SEM、EDS和拉曼光谱仪对涂层显微组织进行表征。结果表明,氧化石墨烯质量浓度对GO/Er2O3复合涂层微观结构影响较大,当氧化石墨烯质量浓度达到5 mg/mL时,氧化石墨烯能够完整地覆盖在Er2O3涂层表面,达到提高阻氚因子的作用。而不同烧结气氛对GO/Er2O3复合涂层微观结构影响不显著。Erbium(Ⅲ)acetate tetrahydrate(C6H9ErO6H2O),2-methoxyethanol and diethanolamine are utilized as precursor solvent and stabilizer,respectively to prepare Er203 tritium permeation barriers(TPB)coating on China Low Activation Steel(CLAM)via sol-gel method.Subsequently,a layer of graphene oxide(GO)film is prepared onto the crystallized erbium oxide coating by spin-coating method to acquire GO/Er2O3 composite coating.In this work,the microstructure of coating is analyzed by field emission scanning electron microscopy(FE-SEM),energy dispersive X-ray spectroscopy(EDS)and Raman spectroscopy.The results show that the concentration of graphene oxide has a significant impact on the microstructure of GO/Er2O3 composite coating.When the concentration of graphene oxide reaches5 mg·mL^-1,the surface of the Er203 coatings can be completely covered by graphene oxide,which will enhance the performance against tritium permeation.Different sintering atmosphere has no significant influence on the microstructure of GO/Er2O3 composite coating.

关 键 词：溶胶-凝胶法 阻氚涂层 GO/Er2O3复合涂层 

分 类 号：TH3[机械工程—机械制造及自动化]