Deuterium permeation behavior of erbium oxide coating on austenitic, ferritic, and ferritic/martensitic steels
Deuterium permeation behavior of erbium oxide coating on austenitic, ferritic, and ferritic/martensitic steels
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DOI：
10.1016/j.fusengdes.2008.12.030
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发表时间：
2009-06
期刊：
影响因子：
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通讯作者：
T. Chikada;A. Suzuki;Zhe Yaoa;D. Levchuk;H. Maier;T. Terai;T. Muroga
中科院分区：
文献类型：
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作者：
T. Chikada;A. Suzuki;Zhe Yaoa;D. Levchuk;H. Maier;T. Terai;T. Muroga
聚变包层中需要有氚渗透阻挡层，以减少燃料损失和健康危害。在这项研究中，氘渗透实验已经进行了四种钢和过滤电弧沉积法制备的氧化铒涂层。在573- 723 K温度范围内，未涂覆样品的渗透通量表现出扩散限制机制，渗透率与文献数据相对应。在室温下沉积的涂层样品在773 K下进行了测试。结果表明，在不同的钢基体上，涂层均能有效地抑制氘的渗透。此外，与未涂覆的样品相比，驱动压力的指数略有变化。然而，渗透状态仍然接近扩散极限。
Tritium permeation barrier is required in fusion blanket for reduction of loss of fuel and health hazard. In this study, deuterium permeation experiments have been performed on four kinds of steels and erbium oxide coatings fabricated by a filtered arc deposition method. The permeation flux of uncoated samples shows diffusion-limited regime in the temperature range 573–723K and the permeability is corresponding to literature data. The coated samples deposited at room temperature have been tested at 773K. It is found that the coatings suppress the deuterium permeation to a close level in spite of different types of steel substrates. In addition, the exponent of the driving pressure slightly changes compared to the uncoated sample. However, the permeation regime is still near diffusion limited.