Preparation and hydrogen penetration performance of TiO2/TiCx composite coatings
Preparation and hydrogen penetration performance of TiO2/TiCx composite coatings
复制标题
TiO2/TiCx复合涂层的制备及氢渗透性能
DOI：
10.1016/j.ijhydene.2020.03.049
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发表时间：
2020-05
影响因子：
7.2
通讯作者：
Zhang Zhengjun
中科院分区：
文献类型：
--
作者：
Lu Zhaoxia;Zhou Qingyun;Ling Yunhan;Hou Baorong;Wang Jipeng;Zhang Zhengjun
碳化钛是聚变堆中氚渗透阻挡层的良好候选材料。然而，其氧化敏感性和陶瓷涂层与基体之间的失配仍然是一个挑战。在这项研究中，一个有前途的候选人作为氢渗透屏障，包括钛基陶瓷TiO 2/TiC x复合涂层，提出。该TiO 2/TiCx复合涂层的制备过程包括碳离子注入和超低氧分压氧化两步。结果表明，TiO 2涂层的最佳氧化温度为550 °C，随着氧化温度的升高，氧化层表面的颗粒变得粗大、排列疏松，氧化层的防护性能大大降低。通过氢等离子体放电环境模拟了该复合涂层在聚变堆中的氢阻挡渗透行为，结果表明，该复合涂层的氢阻挡渗透性能明显优于单一TiO 2涂层。此外，氢等离子体处理后的涂层通过TiCx层的扩散生长表现出一定的自修复性能。这些发现为制备复合涂层抑制氢渗透提供了一种新的方法，为氢渗透阻挡材料的发展提供了新的思路。
Titanium carbide is a good candidate for tritium permeation barrier in a fusion reactor. However, its oxidation susceptibility and the mismatch between the ceramic coating and substrate are still a challenge. In this study, a promising candidate as a hydrogen permeation barrier, comprising a titanium-based ceramic TiO2/TiCxcomposite coating, was proposed. The preparation process of this TiO2/TiCxcomposite coating involves two steps of carbon ion implantation and oxidation under ultra-low oxygen partial pressure. According to the results, the optimal oxidation temperature for TiO2coating is 550 °C, with the increase of the oxidation temperature, the particles on the surface of the oxide layer become coarse and loosely arranged, and the protective performance of the oxide layer is greatly reduced. The hydrogen barrier permeation behavior of the composite coating in a fusion reactor was simulated via hydrogen plasma discharge environment, the results show that the hydrogen barrier permeation performance of the composite is significantly better than that of a single TiO2coating. In addition, the coatings treated with hydrogen plasma showed a certain self-repairing performance through the diffusion growth of the TiCxlayer. These findings illustrate a novel method for preparing composite coatings to restrain hydrogen permeation, providing insight into the development of hydrogen permeation barrier materials.
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影响因子：
1.9
作者：
Perron, H.;Vandenborre, J.;Catalette, H.
通讯作者：
Catalette, H.
影响因子：
3.1
作者：
R. Causey;W. Wampler
通讯作者：
R. Causey;W. Wampler
影响因子：
6.2
作者：
Jinran Shen;Wentao Hu;Yueming Li;Liqiang Li;Xiao-Jun Lv;Long Zhang
通讯作者：
Jinran Shen;Wentao Hu;Yueming Li;Liqiang Li;Xiao-Jun Lv;Long Zhang
影响因子：
1.7
作者：
Tianshi Wang;J. Pu;C. Bo;L. Jian
通讯作者：
Tianshi Wang;J. Pu;C. Bo;L. Jian
DOI：
10.1007/978-1-4020-5514-0_84
发表时间：
2007
期刊：
--
影响因子：
--
作者：
V. Popov;E. Denisov
通讯作者：
V. Popov;E. Denisov