Shlimas Dmitriy I, Borgekov Daryn B, Kozlovskiy Artem L, Zdorovets Maxim V
Laboratory of Solid State Physics, The Institute of Nuclear Physics, Almaty 050032, Kazakhstan.
Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan.
Materials (Basel). 2023 Jul 23;16(14):5176. doi: 10.3390/ma16145176.
The article considers the effect of doping with magnesium oxide (MgO) on changes in the properties of lithium-containing ceramics based on lithium metazirconate (LiZrO). There is interest in this type of ceramics on account of their prospects for application in tritium production in thermonuclear power engineering, as well as several other applications related to alternative energy sources. During the investigations undertaken, it was found that variation in the MgO dopant concentration above 0.10-0.15 mol resulted in the formation of impurity inclusions in the ceramic structure in the form of a MgLiZrO phase, the presence of which resulted in a rise in the density of the ceramics, along with elevation in resistance to external influences. Moreover, during experimental work on the study of the thermal stability of the ceramics to external influences, it was found that the formation of two-phase ceramics resulted in growth in the preservation of stable strength properties during high-temperature cyclic tests. The decrease in strength characteristics was observed to be less than 1%.
本文探讨了用氧化镁（MgO）掺杂对基于偏锆酸锂（LiZrO）的含锂陶瓷性能变化的影响。由于这类陶瓷在热核聚变工程中生产氚的应用前景，以及与替代能源相关的其他一些应用，人们对其产生了兴趣。在进行的研究中发现，当MgO掺杂剂浓度变化超过0.10 - 0.15摩尔时，会在陶瓷结构中形成MgLiZrO相形式的杂质夹杂物，其存在导致陶瓷密度增加，同时对外界影响的抗性提高。此外，在研究陶瓷对外部影响的热稳定性的实验工作中发现，两相陶瓷的形成导致在高温循环测试期间稳定强度性能的保留增加。观察到强度特性的下降小于1%。
