氢化锆表面原位氧化法制备氢渗透阻挡层的研究  

Study on Hydrogen Permeation Barrier on the Surface of Zirconium Hydride by Oxidation in Situ

作　　者：陈伟东[1] 韩琳[1] 张力[1] 黄永章[1] 王力军[1] 陈松[1] 

机构地区：[1]北京有色金属研究总院矿物资源与冶金材料研究所,北京100088

出　　处：《稀有金属材料与工程》2007年第10期1848-1850,共3页Rare Metal Materials and Engineering

摘　　要：采用原位氧化法在氢化锆表面制备了氢渗透阻挡层,分析了工艺参数对氧化层生长的影响,借助XRD,XPS,SEM等分析测试手段对氧化层的物相组成和截面形貌进行分析,并对氧化层的阻氢效果进行检测。结果表明,氧化层的质量增量随氧化温度的升高而增大,在氧分压为0.1MPa,550℃恒温氧化2h的工艺条件下,在氢化锆表面制得了厚度为50～60μm的氧化层;该氧化层主要为Baddeleyite结构的ZrO2;氧化层中含有O,Zr,C等元素并存在O—H键;氧化层均匀、致密,具有一定的阻氢作用。Hydrogen permeation barrier was prepared by reacting zirconium hydride with oxygen in situ. The influences of temperature on oxide layer were investigated. The morphology and phase structure of oxide layer were analyzed by the techniques of XPS, SEM and XRD, and the anti-permeation effect was studied. The results indicate that the mass gain of oxide layer increases of with increasing of temperature. The oxide layer with 50-60 μm thickness was formed at the partial oxygen pressure of 0.1 MPa and heat preservation at 550 ℃for 2 hours. The main phase of oxide layer is ZrO： with the Baddeleyite structure. The XPS analysis shows that oxygen, zirconium, carbon and the O-H bonds exist in an oxide layer, which is uniform and dense and has the function of hydrogen anti-permeation.

关 键 词：氢化锆 氢渗透阻挡层 原位氧化法 氧化层 

分 类 号：TG174.451[金属学及工艺—金属表面处理]