Compatibility of tritium permeation barrier coatings with ceramic breeder pebbles

Compatibility of tritium permeation barrier coatings with ceramic breeder pebbles
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氚渗透阻挡涂层与陶瓷增殖卵石的相容性

DOI:
10.1016/j.corsci.2021.109288
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发表时间:
2021
期刊:
影响因子:
8.3
通讯作者:
Knitter Regina
Knitter Regina
中科院分区:
材料科学1区
文献类型:
--
作者:
Chikada Takumi;Kolb Matthias H.H.;Fujita Hikari;Nakamura Kazuki;Kimura Keisuke;Rasinski Marcin;Hishinuma Yoshimitsu;Mukai Keisuke;Knitter Regina

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具有氚渗透屏障的低活化铁素体/马氏体钢F82H样品与陶瓷增殖石接触,在550°C和700°C下在吹扫气体下退火32天。在550℃下,cr2o3形成的F82H快速反应形成三层,纯铁投影随着退火时间的延长而增大。O和Li的扩散动力学符合菲克第一扩散定律。er2o3涂层不与鹅卵石发生反应,但由于氧气通过涂层扩散而变质。体系中的杂质浓度和涂层厚度影响着固体增殖层环境下涂层的相容性。
Reduced activation ferritic/martensitic steel F82H samples with tritium permeation barriers were annealed in contact with ceramic breeder pebbles at 550 °C and 700 °C for up to 32 days under purge gas. Cr2O3-formed F82H rapidly reacted to form three layers at 550 °C, and pure Fe projections grew with annealing time. Diffusion kinetics of O and Li were well fitted with Fick’s first law of diffusion. Er2O3coatings did not react with the pebbles, but deteriorated by oxygen diffusion through the coatings. The impurity concentrations in the system and the coating thickness affect the coating compatibility in solid breeder blanket environments.
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