Ti-Mo合金薄膜的储氢特性和抗氢脆能力  

HYDROGEN STORAGE AND HYDROGEN EM- BRITTLEMENT OF Ti-Mo ALLOY FILMS

作　　者：施立群[1] 周筑颖[1] 赵国庆[1] 

机构地区：[1]复旦大学现代物理研究所,上海200433

出　　处：《金属学报》2000年第5期530-534,共5页Acta Metallurgica Sinica

摘　　要：用前向反冲方法和高能非Ｒｕｔｈｅｒｆｏｒｄ背散射方法研究了磁控溅射制备的Ｔｉ－Ｍｏ合金薄膜的氢化性能和碳、氧污染的影响。掺Ｍｏ的Ｔｉ合金薄膜不仅能大大减低碳的污染，而且较纯钛有较高的吸氢性能．合金氢化后由δ相氢化物和β相固溶体组成．随着Ｍｏ成分增加，合金中的β－（Ｔｉ，Ｍｏ）含量上升．当Ｍｏ含量（原子分数，％）约２０时可形成单一的β相固溶体，此时氢含量（原子分数，％）仍可在４５以上．Ｔｉ－Ｍｏ合金薄膜同时也具有良好的附着力和抗粉化性能。Hydrogenation property of Ti-Mo alloy films and the influences of C and O con- tamination on hydrogen uptake were investigated by elastic recoil detection(ERD) and high-energy non-Rutherford backscattering methods.The results show that not only the C contamination in the alloys can be reduced greatly and also the considerable upgrade in hydrogenation capability has been obtained, as compared with pure Ti. On the other hand, there is only a little increase in their storage capability with increasing Mo concentration, and the phases in the samples hydrogenated at 473 K are composed of a δ-hydride and a β-solid solution. When the Mo content approached to 20(atomic fraction,%), only the δ-phase existed in the film and the hydrogen concentration is about 45 (atomic fraction,%), the durability of the sputtered films on Mo substrate against the hydrogen absorption desorption cycle was measured, which showed a significant improvement.

关 键 词：TI-MO合金 薄膜 氢化 氢脆 储氢特性 

分 类 号：O484.4[理学—固体物理] TG139.7[理学—物理]