Hydrogen Permeation through Layered Metallic Films

氢透过层状金属膜的渗透

• 批准号: 03452259
• 负责人: HAYASHI Yasunori
• 金额: $ 3.65万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03452259/
• 关键词: Hydrogen Permeation; Diffusion; Layered Film; Ion Driven Permeation; 水素; 透過; 積層金属膜; イオン駆動

One of the Application of metal-hydrogen system is to fabricate a hydrogen permeable metalic film. The hydrogen permeable film can be used not only for purification of hydrogen but also for hydrogen evacuating window to avoid the degradation of vaccum by hydrogen leakage. The object of this work is to invent a hydrogen evacuating window by layered metallic films under ion driven permeation.When the partial pressure of hydrogen in a vaccum chamber is higher than outside, the permeable film works as a evacuating window, but in the opposite it becomes a leaking window. The film must have some barrier for permeation, and some driving mechanism is necessary to surmount the barrier when evacuation is needed.The distribution and diffusion of hydrogen in multi-layered films were studied by oscillating permeation experiments. The flow of hydrogen through the layered films could reasonably expressed using solubility and diffusibity in each layer and the boundary condition of constant flow at the interfaces.Ion driven permeation was analized taking into account the diffusion and surface reaction on both side of the mean range of the implantation. The permeation flow was expressed by a different function of irradiation flux depending on the rate determining step.The conclusion is as follows: when a Cu coated Fe film is irradiated from Cu side, back flow is diminished and permeation flow increases.Selecting a good combination of diffusion layer and barrier layer, an efficient hydrogen evacuation window can be operated by ion driven permeation.

金属氢系统的应用之一是制造氢可渗透的金属膜。可渗透的膜不仅可用于纯化氢，而且还可以用于氢蒸发窗口，以避免氢泄漏通过氢降解。这项工作的目的是通过在离子驱动的渗透下通过分层的金属膜发明氢疏散窗口。当真空腔中的氢的部分压高于外部时，可渗透的膜可作为撤离窗口，但在相反的窗口中，它变成了一个泄漏的窗口。该膜必须具有渗透性的障碍，并且在需要疏散时必须进行某种驱动机制。通过振荡渗透实验研究了氢在多层膜中的分布和扩散。氢通过分层膜的流动可以使用每一层的溶解度和扩散性来合理地表达，并且在接口处的恒定流量的边界条件被分析了ION驱动的渗透率，考虑到植入平均范围的两侧的扩散和表面反应。渗透流通过辐射通量的不同功能取决于确定速率的步骤来表示。结论如下：当Cu涂层的Fe膜从CU侧受到辐照时，后流量减小并增加渗透流量。选择良好的扩散层和屏障层组合的良好组合，有效的氢蒸发窗口可以通过Inived Iniviendiendion Inivion Inivion Inivion Inion Inion Inion Inion Inion Inion Inion Inion Inion Inion Inion Inion rive In rive iondion rive iondion ristion ristion rive iondion ristion rive iondion rive iondion rive iondion。

项目成果

W.M.Shu,Y.Hayashi,A.Tahara: "Hydrogen Permeation and Diffusion in FeーTi Alloys" J.LessーCommon Metals. 172,174. 740-747 (1991)

W.M.Shu、Y.Hayashi、A.Tahara：“Fe-Ti 合金中的氢渗透和扩散”J.Less-Common Metals 172,174 (1991)。

W.M.Shu,K.Okuno,Y.Hyashi,S.Ohira,Y.Naruse: "Implantation Driven Permeation of Deuterium throgh Pure Molydenum" Fusion Technology. 21. 1934-1938 (1992)

W.M.Shu、K.Okuno、Y.Hyashi、S.Ohira、Y.Naruse：“通过纯钼注入驱动氘渗透”聚变技术。

W.M.Shu,K.Okuno,Y.HAyashi,Y.Naruse: "Permeation of Deuterium Implanted into Pure Iron" J.Nuclear Materials. (1993)

W.M.Shu，K.Okuno，Y.HAyashi，Y.Naruse：“氘注入纯铁的渗透”J.Nuclear Materials。

W.M.Shu, K.Okuno, Y.Hayashi, Y.Naruse: "Permeation of Deuterium Implanted into Pure Iron" J. Nuclear Materials. (1993)

W.M.Shu、K.Okuno、Y.Hayashi、Y.Naruse：“氘注入纯铁的渗透”J.核材料。

W.M.Shu,Y.Hayashi,K.Okuno: "Ion-Driven Permeation of Deuterium in Fe-Ti Alloys" J.Alloys and Compounds. (1993)

W.M.Shu，Y.Hayashi，K.Okuno：“Fe-Ti 合金中氘的离子驱动渗透”J.合金和化合物。