Thermodynamic assessment of the ternary AgNO3–LiNO3–NaNO3 system

TernAPI program for the calculation of ternary phase diagrams with isolated miscibility gaps by the convex hull method

“…E.g. L+LiNO 3 +ρ H region gives 3 different phases indexes and it allows to detect it A c c e p t e d M a n u s c r i p t even if T is very near to the temperature of binary eutectic T eut = 445.5 K [32] in the AgNO 3 -LiNO 3 binary subsystem.…”

“…We begin our consideration of the test examples from the AgNO 3 -LiNO 3 -NaNO 3 system using its thermodynamic model from [32]. It is a good test system due to the presence of all three types of phases used in TernAPI: ternary solution (liquid), (Ag, Na)NO 3 quasibinary solid solutions (ρ L , ρ H -high-and low-temperature rhombohedral, o -orthorhombic) and stoichiometric phases (LiNO 3 ).…”

“…It is a good test system due to the presence of all three types of phases used in TernAPI: ternary solution (liquid), (Ag, Na)NO 3 quasibinary solid solutions (ρ L , ρ H -high-and low-temperature rhombohedral, o -orthorhombic) and stoichiometric phases (LiNO 3 ). A set of calculated isothermal and polythermal sections present in the original article [32] and can be used as reference example.…”

Experimental investigation and thermodynamic evaluation of the CsNO3-LiNO3-NaNO3 ternary system

“…[17,20,21]. Because alkali nitrates seem to be potential solid-liquid PCMs in the temperature range (373-573) K [22], we have undertaken, for some years now, the development of multicomponent nitrate mixtures based on NaNO3 which has been found as a proper PCM with respect to its heat of fusion and corrosiveness [23][24][25]. The purpose of our studies is to access the composition of mixtures having a lower congruent melting temperature (T < 573 K) through the phase diagram study.…”

“…Except for CsNO3-LiNO3 system, all limiting binary systems of the AgNO3-CsNO3-LiNO3-NaNO3 quaternary system have been assessed thermodynamically and the parameters describing the Gibbs energy of all binary phases are well-known [23][24][25][26]. Two of the four ternary sub-systems of the quaternary system have been already evaluated in our previous works: AgNO3-LiNO3-NaNO3 [23,24] and AgNO3-CsNO3-NaNO3 [25]. But up to now, no thermodynamic modeling of the remaining two (AgNO3-CsNO3-LiNO3 and CsNO3-LiNO3-NaNO3) is available.…”