Compatibility of AlN with liquid lithium
Compatibility of AlN with liquid lithium
复制标题
AlN与液态锂的相容性
DOI：
10.1016/s0022-3115(00)00249-x
复制
发表时间：
2000
影响因子：
3.1
通讯作者：
Takaaki Mitsuyama
中科院分区：
文献类型：
--
作者：
T. Terai;A. Suzuki;T. Yoneoka;Takaaki Mitsuyama
陶瓷涂层的研制是液体毯研究与开发的重要课题之一。研究了氮化铝烧结体和氮化铝涂层与锂的相容性。在773 K下于锂中烧结1390 h的AlN（有或没有Y2O3的烧结助剂）的电阻率略有下降，这是由于Al2O3杂质的减少，尽管AlN和Y2O3组分本身没有受到严重的腐蚀。另一方面，采用射频溅射法在SUS430表面制备的高电阻率（>1011Ω m）AlN陶瓷膜在773 K的液态锂中56 h后消失。这可能是因为由于涂层和基材之间的热膨胀差异而形成裂纹，或者因为两者之间形成的氧化物被液态锂除去。
Development of ceramic coatings is one of the most important subjects in liquid blanket research and development. Compatibility of sintered AlN and AlN coatings with liquid lithium, a candidate breeding material, was investigated. Sintered AlN with or without the sintering aid of Y2O3examined in lithium at 773 K for 1390 h showed a slight decrease in electrical resistivity because of a reduction in Al2O3impurity, though AlN and Y2O3components themselves were subject to no severe corrosion. On the other hand, AlN ceramic coatings on SUS430 with high resistivity (>1011Ω m ) fabricated by the RF sputtering method disappeared in liquid lithium at 773 K in 56 h. This may be because cracks were formed due to the difference in thermal expansion between the coatings and the substrate or because the oxide formed between the two was removed by liquid lithium.