透氧膜用Ag-CuO高温密封材料的研究  

High temperature Ag-CuO sealant

作　　者：吕晓旸[1] 甄强[2] 丁伟中[1] 鲁雄刚[1] 秦国利[1] 

机构地区：[1]上海大学钢铁冶金重点实验室,上海200072 [2]上海大学纳米科学与技术中心,上海200444

出　　处：《功能材料》2008年第7期1161-1165,共5页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2006AA11A189);上海市科委重点科研资助项目(06DZ12212);先进钢铁材料技术国家工程研究中心资助项目(中050209)

摘　　要：研究了Ag-CuO密封材料在BaCo0.7Fe0.2Nb0.1O3-δ(BCFN)透氧膜材料上的润湿行为。对不同成分Ag-CuO在BCFN透氧膜材料上的润湿角的研究结果表明,CuO的加入根本上改善了Ag的润湿性能;CuO加入量从0增加到4%(摩尔分数)的试验中,润湿角迅速减小,说明少量添加CuO即可明显改善Ag-CuO对BCFN透氧膜的润湿性能。对润湿表面SEM的分析结果表明,当CuO的加入量增加到8%(摩尔分数)以上,析出的CuO会明显侵蚀透氧膜材料。透氧膜管与304不锈钢的封接试验结果证明,密封后透氧膜装置的具有很好的高温气密性。In this paper, the wetting behavior of Ag-CuO on BaCo0.7 Fe0.2 Nb0.1O3-δ substrate was investigated with sessile drop method. The wetting angles were measured, and the addition of a little CuO substantially improved the wetting of these substrates by silver. In the lower content between 0-4mol%, the improvement was great. Addition of CuO （above 8mol%） in silver shows the subsequence of corrosion in BCFN material. The sealing experiment was undertaken with BCFN tube and 304 steel, and between them the result of sealing is well.

关 键 词：Ag-CuO BaCo0.7Fe0.2Nb0.1O3-δ 润湿角 侵蚀 密封 

分 类 号：TB34[一般工业技术—材料科学与工程]