氢化锆高温抗氢渗透涂层研究  

Study on Hydrogen Permeation Barrier of Zirconium Hydride

作　　者：张华锋[1] 杨启法[1] 王振东[1] 刘小舟[1] 

机构地区：[1]中国原子能科学研究院反应堆工程研究设计所,北京102413

出　　处：《原子能科学技术》2005年第B07期83-87,共5页Atomic Energy Science and Technology

摘　　要：利用气固反应方法在锆、氢化锆表面制备厚为5～20μm的抗氢渗透涂层。借助光学显微镜、扫描电子显微镜(SEM)对涂层进行形貌观察;由电子衍射能谱(EDS)进行成分分析;用X射线衍射仪对涂层进行物相分析。分析结果表明:涂层表面均匀、致密,厚度为20μm左右;涂层中含有Zr、C、O、P等元素,且O有明显的扩散;涂层中存在具有致密结构的氧化锆、磷化锆等物相,可能还存在锆的碳化物相。By using gas-solid reaction method, the hydrogen permeation barrier with 5 ～ 20 μm thickness was prepared on the surface of zirconium and zirconium hydride. The examinations of the morphology and structure of the barrier were accomplished by optical microscope and SEM. The compositions of the barrier were determined by EDS. The phases in the barrier were also analyzed by XRD. The results indicate that the barrier is well distributed and compact, moreover it combines firmly with the matrix. There are Zr, O, C, P and H etc. elements in the barrier. Otherwise the oxygen diffuses in matrix apparently. The main phases of the barrier are the ZrO_2 and ZrP. There exists the ZrC phase or other phases.

关 键 词：氢化锆 抗氢渗透涂层 气-固反应 

分 类 号：TG115.23[金属学及工艺—物理冶金]