Binary system

About: Binary system is a research topic. Over the lifetime, 5788 publications have been published within this topic receiving 97882 citations.

Phase Diagram of the Li4GeS4–Li3PS4 Quasi-Binary System Containing the Superionic Conductor Li10GeP2S12

Abstract: A phase diagram is constructed for the quasi-binary Li4GeS4–Li3PS4 system containing the lithium superionic conductor Li10GeP2S12 (LGPS), having an LGPS-type structure, and the β-Li3PS4-type phase, having a thio-LISICON structure. The LGPS and thio-LISICON intermediate compounds are found to exhibit solid solution ranges and show incongruent melting at 650°C and 560°C, respectively. The end-member Li4GeS4 has a compositional range of 0 < k < 0.3 in [(1−k) Li4GeS4 + k Li3PS4], while the other end-member γ-Li3PS4 has no solid solution range. The crystal structures appearing in the binary systems are the α-, β-, and γ-type Li3PS4 structures and the LGPS-type structure, and these are formed by PS4 tetrahedra with different arrangements in each structure. The phase and structural relationships between the compounds appearing in the Li4GeS4–Li3PS4 system are thus clarified.

Thermodynamic assessment of the Fe-Zn system

Abstract: The Fe-Zn binary system is assessed thermodynamically. A two-sublattice model is adopted to describe the intermetallic compounds, which are treated as nonstoichiometric. A set of parameters consistent with most of the available experimental data on both phase diagram and activities measurements is obtained through optimization. A comparison with previous work is also presented.

Excess Molar Volumes, Viscosity Deviations, and Isentropic Compressibility Changes in Binary Mixtures of N-Methylacetamide + 2-Methoxyethanol and N-Methylacetamide + Water at (308.15, 313.15, and 318.15) K

Abstract: Densities, viscosities, and ultrasonic velocities of the binary mixtures of N-methylacetamide + 2-methoxyethanol and + water have been measured at (308.15, 313.15, and 318.15) K. The excess molar volumes, viscosity deviations, and isentropic compressibility changes of the mixture from the ideal mole fraction rule have been calculated from these data. The computed results have been fitted to the Redlich-Kister polynomial.

Experimental measurement of vapor–liquid equilibrium for (trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) + propane (R290))

Abstract: The VLE data for the binary system of R1234ze(E) + R290 were measured with a recirculation method at four temperatures (258.150, 263.150, 273.150 and 283.150 K). The measured uncertainties of the temperature, pressure, and compositions are ±5 mK, ±0.0005 MPa, and ±0.005, respectively. All the experimental data were correlated by the Peng–Robinson (PR) EoS with the Huron–Vidal (HV) mixing rule involving the non-random two-liquid (NRTL) activity coefficient (PR–HV–NRTL) model. Azeotropic behavior can be found at the measured temperature range.

High-Pressure Density Measurements for the Binary System Ethanol + Heptane

Abstract: The density of the asymmetrical binary system composed of ethanol and heptane has been measured (630 points) for nine different compositions including the pure compounds at five temperatures in the range (293.15 to 333.15) K and 14 isobars up to 65 MPa with a vibrating-tube densimeter, The experimental uncertainty is estimated to be 0.5 kg·m-3. The isothermal compressibility, the isobaric thermal expansion, and the excess molar volume have been derived from the experimental density data, revealing that a volume expansion occurs for this binary system. The results have been interpreted as due to changes in the molecular free-volume, disruption of the order molecular structure, and the breaking of hydrogen bonds within the self-associating alcohol.