Stability of Y2O3 hydrogen isotope permeation barriers in hydrogen at high temperatures
Stability of Y2O3 hydrogen isotope permeation barriers in hydrogen at high temperatures
复制标题
Y2O3 氢同位素渗透屏障在高温下氢气中的稳定性
DOI：
10.1016/j.ijhydene.2013.01.110
复制
发表时间：
2013-04-15
影响因子：
7.2
通讯作者：
Cao, Jiang-Li
中科院分区：
文献类型：
--
作者：
Li, Qun;Liu, Jun;Cao, Jiang-Li
氢同位素渗透阻挡层在氢能和热核聚变能领域有着巨大的应用潜力。本文报道了Y_2O_3高抗冲聚苯乙烯在高温氢气中的稳定性，包括结构、力学性能和电学性能。随着700 ℃氢处理时间的延长，Y2O3的高折射率衍射逐渐减弱，而（400）衍射逐渐增强。Y2O3 HIPB的颜色从棕色变为灰色。随着氢处理时间的延长，结合强度下降了61%，最后保持不变。同时，Y2O3 HIPB的电阻率从8.2 × 10（9）Ω cm下降超过两个数量级，然后趋于恒定。氧损失以及氢的掺入被认为是负责这些修改和目前的工作的迹象，制备高可靠性HIPB进行了讨论。版权所有（c）2013，氢能出版有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
Hydrogen isotope permeation barriers (HIPB) have great potential applications in the fields of hydrogen energy and thermonuclear fusion energy. Here, we report the stability of Y2O3 HIPS in gaseous hydrogen at high temperatures including the structures, mechanical properties and electrical properties. With increasing hydrogen treatment time at 700 degrees C, the high-index diffractions of Y2O3 became weak gradually whereas the (400) diffraction was strengthened. The color of the Y2O3 HIPB changed from brown to gray. The bonding strength decreased by 61% with increasing hydrogen treatment time, and finally remained unchanged. Meanwhile, the electrical resistivity of the Y2O3 HIPB decreased from 8.2 x 10(9) Omega cm by over two orders of magnitude and then tended to be constant. The oxygen loss as well as hydrogen incorporation was proposed to be responsible for these modifications and indications of the present work for preparation of HIPB with high reliability were discussed. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.