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Дата последнего поиска статьи во внешних источниках: 10 ноября 2021 г.
Аннотация:The work compiled the main results of research devoted to the production of high-density nonporous ceramics, namely ceramics based on aluminum-magnesium spinel (AMS). The article discusses questions about the role of reducing the sintering temperature, increasing the performance of the material. A promising solution to these issues is the introduction of modifying additives. Various additives and their mechanism are considered. Particular attention is paid to solid solution-forming agents. The basic laws of the interaction of sintering additives that do not react with the basic compound are described. Possible schemes for the formation of a solid solution for yttrium and gallium oxides are presented. The economic component of the raw materials used is also considered. It was determined that the most advantageous is the use of gallium oxide as an additive, and the diagrams of state of gallium oxide are also given. It has been revealed that the method of introducing the additive on the example of introducing gallium oxide plays an important role in improving the properties of ceramics based on aluminum-magnesium spinel.