теплоаккумулирующие материалы

Melts based on lithium salts are applied in various branches of engineering and scientific research [1]. It requires improved methods to search for low-melting compounds and data on phase equilibrium in systems of three or more components. We have proposed a settlementgraphic way to select the salt compositions by two properties (temperature and specific enthalpy of melting) in the case studies the five-component system Li // F, Br, VO3, MoO4, SO4.

An important feature when using low-melting mixtures of halides of s-elements as a refiner of electrolytes for chemical power sources and thermal storage materials in thermal batteries is the amount of volume increase in the melting process which can be calculated by the formula [1]: δV = ((Vк – Vж) / Vк) ∙ 100% = (∆V / Vк) ∙ 100%, (1) where Vк – the volume of a solid substance (or mixture) at the melting temperature;Vж – the volume of liquid at the melting temperature (substance or mixture); ∆V – volume difference in the liquid and solid states of th

In modem technological processes increase used molten multicomponent solt mixtures. Determination of the composition and melting temperature are important in application of the compositions, identification of patterns processes occurring during melting and solidification of alloys, as well as the phases in equilibrium at a given thermodynamic conditions, possibly in the study of phase diagrams.