Erbium oxide as a new promising tritium permeation barrier
Erbium oxide as a new promising tritium permeation barrier
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DOI：
10.1016/j.jnucmat.2007.03.183
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发表时间：
2007-08
影响因子：
3.1
通讯作者：
D. Levchuk;S. Levchuk;H. Maier;H. Bolt;A. Suzuki
中科院分区：
文献类型：
--
作者：
D. Levchuk;S. Levchuk;H. Maier;H. Bolt;A. Suzuki
作为一种新的氢同位素屏障材料，氧化Er_2O_3，或Erbia，已经被测试。研究包括热负荷测试和渗透测量，以确定紫苏在高温下是否与其他材料兼容，以及它是否抑制氢的运输。研究发现，在聚变相关材料EUROFER 97上涂覆1μm厚的结晶紫苏涂层，可使渗透率降低近103倍，同时显示出良好的热机械稳定性。由于该涂层在氢同位素渗透率降低方面与晶态α-Al_2O_3相当，但与Al_2O_3相比有一些优点，而且更容易制备，因此提出将其作为渗透阻挡涂层的材料。
As a new hydrogen isotope barrier material, erbium oxide Er2O3, or erbia, has been tested. Investigations included both thermal load test and permeation measurements to determine whether erbia is compatible with other materials at elevated temperatures and if it suppresses hydrogen transport. It is found that a 1μm thick crystalline erbia coating on a fusion relevant material, EUROFER 97, reduces permeability by a factor up to almost 103, while revealing good thermo-mechanical stability being deposited on different substrates. Since the coating is comparable with crystalline α-alumina in terms of hydrogen isotope permeation reduction, but possesses some advantages over alumina and is easier to produce, erbia is proposed as a material for a permeation barrier coating.