Release behavior of water vapor and mass loss from lithium titanate
Release behavior of water vapor and mass loss from lithium titanate
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钛酸锂的水蒸气释放行为和质量损失
DOI：
10.1016/j.fusengdes.2012.02.050
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发表时间：
2012
影响因子：
1.7
通讯作者：
Satoshi Fukada
中科院分区：
文献类型：
--
作者：
Kazunari Katayama;Hideaki Kashimura;Tsuyoshi Hoshino;Masabumi Nishikawa;Hideki Yamasaki;Shinichiro Ishikawa;Yasuhito Ohnishi;Satoshi Fukada
中子辐照产生的氚的释放行为受到陶瓷增殖材料表面水的强烈影响。在本研究中，观察了日本原子能机构(JAEA)作为先进的氚增殖材料处于发展阶段的添加Li的Li2TiO3中水蒸气在高温下的释放行为。分别量化了在氮气气氛中的化学吸附水容量和在氢气气氛中的水生成能力。含锂物质在900℃、10000ppmH2/N2中蒸发所造成的Li2TiO3质量损失约为初始样品重量的1.8%。大部分蒸发的锂附着在样品床周围的石英管上。实验表明，在水蒸气气氛中的质量损失大于在氢气气氛中的质量损失。
The release behavior of tritium generated by neutron irradiation is strongly affected by the surface water of ceramic breeder materials. In the present study, the release behavior of water vapor from Li2TiO3with added Li, which is in a developmental stage in JAEA (Japan Atomic Energy Agency) as an advanced tritium breeder materials, was observed at elevated temperatures. The capacity of chemical adsorbed water in nitrogen atmosphere and the water formation capacity in hydrogen atmosphere were quantified, respectively. The mass loss of the Li2TiO3due to evaporation of Li-containing species at 900°C in 10,000ppmH2/N2was estimated to be 1.8% of initial sample weight. The majority of evaporated Li adhered to a quartz tube around the sample bed. It was shown experimentally that the mass loss in water vapor atmosphere is larger than that in hydrogen atmosphere.