Compatibility of insulating ceramic with liquid breeders
Compatibility of insulating ceramic with liquid breeders
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绝缘陶瓷与液体增殖剂的兼容性
DOI：
10.1016/s0022-3115(97)00334-6
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发表时间：
1998
影响因子：
3.1
通讯作者：
Satoru Tanaka
中科院分区：
文献类型：
--
作者：
T. Terai;Takaaki Mitsuyama;T. Yoneoka;Satoru Tanaka
通过监测重量变化、结构完整性和电阻率，在 773 K 至 5 Ms 的温度下研究了绝缘陶瓷涂层候选材料（Y2O3、Al2O3、MgO、3Al2O3–MgO、AlN (60%)–BN (40%) 和 BN）与金属锂和锂铅合金 (Li17–Pb83) 等液态金属增殖剂的相容性。 Al2O3和3Al2O3-MgO等氧化物被锂严重腐蚀、溶解或破碎，而MgO则以中等速率均匀腐蚀（例如，27μm腐蚀4.8Ms）。热力学最稳定的 Y2O3 腐蚀较少，并且由于非化学计量的 Y2O3−x 的形成，电阻率略有下降。另一方面，Li17-Pb83 根本没有腐蚀任何氧化物。这些结果与热力学预测非常吻合，并且即使在液态锂中进行腐蚀测试后，大多数氧化物仍保持其高电阻率。 AlN-BN 和 BN 等氮化物会被锂腐蚀，并且由于样品中包含的杂质溶解在锂中而变得脆弱。
The compatibility of candidate materials for insulating ceramic coatings (Y2O3, Al2O3, MgO, 3Al2O3–MgO, AlN (60%)–BN (40%) and BN) with liquid metal breeders such as metallic lithium and lithium–lead alloy (Li17–Pb83) was investigated at 773 K up to 5 Ms by monitoring weight change, structural integrity and electrical resistivity. Oxides such as Al2O3and 3Al2O3–MgO were severely corroded and dissolved or broken by lithium, while MgO was corroded uniformly with a moderate rate (e.g. 27 μm for 4.8 Ms). The most thermodynamically stable Y2O3was less corroded and showed a slight decrease in electrical resistivity due to the formation of non-stoichiometric Y2O3−x. On the other hand, no oxides were corroded at all by Li17–Pb83. These results were in good agreement with thermodynamical predictions, and most of the oxides maintained their high electrical resistivity even after the corrosion test in liquid lithium. Nitrides such as AlN–BN and BN were corroded by lithium and became fragile because impurities included in the specimens were dissolved in the lithium.