Influence of molybdenum trioxide on the properties of facing construction ceramics based on low-plastic clay
Abstract
Influence of molybdenum trioxide on the properties of facing construction ceramics based on low-plastic clay
Incoming article date: 14.01.2023The paper presents the results of studying the dependences of the physico-mechanical properties of facing ceramics on the use of molybdenum trioxide. The additive together with boric acid is introduced into a charge based on low-plastic clay. The studied ceramic material was obtained by semi-dry pressing at a maximum firing temperature of 1050 ° C. Both additives used are fins, contributing to liquid-phase sintering and the effect of self-glazing of the surface of the material. At the same time, molybdenum trioxide also makes it possible to reduce the viscosity of the vitreous phase and increase its degree of crystallinity. The optimal amount of molybdenum trioxide has been established, which allows to effectively increase the strength and frost resistance of ceramics. The practical application of the developed composition of the charge will allow the use of low-quality raw materials for the production of facing construction ceramics with high performance characteristics.
Keywords: facing ceramics, molybdenum trioxide, low-plastic clay, boric acid, melting, liquid-phase sintering, self-glazing