scholarly journals MODELING THE PHASE DIAGRAMS OF THE Tl9SmTe6–Tl4PbTe3 AND Tl9SmTe6–Tl9BiTe6 SYSTEMS

2020 ◽  
pp. 12-16
Author(s):  
S.Z. Imamaliyeva ◽  
◽  
G.I. Alakbarzade ◽  
A.N. Mamedov ◽  
M.B. Babanly ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Phase Diagrams ◽  
Solid Solutions ◽  
Thermodynamic Functions ◽  
Analytical Models ◽  
Regular Solutions ◽  
Uncertainty Band ◽  
Equilibrium Phases ◽  
Molecular Compounds

Using the multipurpose genetic algorithm, the analytical models of phase diagrams of the Tl9SmTe6–Tl8Pb2Te6 and Tl9SmTe6–Tl9BiTe6 systems as temperature dependencies of compositions of the equilibrium phases were obtained. The boundaries of the uncertainty band for the liquidus and solidus curves of solid solutions are determined. According to the model of regular solutions of non-molecular compounds, the thermodynamic functions of mixing solid solutions depending on the composition and temperature are determined. It was found that solid solutions based on the Tl9SmTe6, Tl8Pb2Te6 and Tl9BiTe6 compounds are thermodynamically stabile in the whole concentration range

InGaAsP Solid Solutions: Phase Diagrams, Growth from the Melt on GaAs Substrates, Elastically Strained Epitaxial Layers

2002 ◽  
pp. 67-79
Author(s):  
Yu. B. Bolkhovityanov ◽  
A. S. Yaroshevich ◽  
M. A. Revenko ◽  
E. M. Trukhanov
Keyword(s):  
Phase Diagrams ◽  
Solid Solutions ◽  
Epitaxial Layers ◽  
Gaas Substrates

scholarly journals Политермический разрез SnAs–P тройной системы Sn–As–P

2019 ◽  
Vol 21 (2) ◽  
pp. 287-295
Author(s):  
Tatiana P. Sushkova ◽  
Aleksandra V. Sheveljuhina ◽  
Galina V. Semenova ◽  
Elena Yu. Proskurina
Keyword(s):  
Phase Diagrams ◽  
Solid Solutions ◽  
Condensed Matter ◽  
High Energy ◽  
Potassium Ion ◽  
Dew Point ◽  
Sodium Ion ◽  
P System ◽  
Sodium Ion Batteries ◽  
Tin Phosphide

Проведено исследование фазовых равновесий в тройной системе Sn–As–P в области высокой концентрации летучих компонентов. Методами рентгенофазового и дифференциального термического анализа изучены сплавы политермического разреза SnAs–P. Показано, что растворимость фосфора в моноарсениде олова в направлении этого разреза менее 0.05 мол.д. фосфора. Построена Т-х диаграмма политермического сечения SnAs–Р. Наличие на Т-х диаграмме горизонтали при температуре 827±2 К соответствует реализации в системе Sn–As–P нонвариантного перитектического равновесия L + (d) ↔ b + g , где (d), b и g – трехкомпонентные твердые растворы на основе As1-xPx, SnAs и SnP3 соответственно     REFERENCES Zhang W., Mao J., Li S., Chen Z., Guo Z. Phosphorus-Based Alloy Materials for Advanced Potassium-Ion Battery Anode // Am. Chem. Soc., 2017, v. 139(9), pp. 3316–3319. https://doi.org/10.1021/jacs.6b12185 Liu S., Zhang H., Xu L., Ma L., Chen X. Solvothermal preparation of tin phosphide as a long-life anode for advanced lithium and sodium ion batteries // of Power Sources, 2016, v. 304, pp. 346–353. https://doi.org/10.1016/j.jpowsour.2015.11.056 Zhang W., Pang W., Sencadas V., Guo Z. Understanding High-Energy-Density Sn4P3 Anodes for Potassium-Ion Batteries // Joule, 2018, v. 2(8), pp. 1534–1547. https://doi.org/10.1016/j.joule.2018.04022 Lan D., Wang W., Shi L., Huang Y., Hu L., Li Q. Phase pure Sn4P3 nanotops by solution-liquid-solid growth for anode application in sodium ion batteries // Mater. Chem. A, 2017, v. 5, pp. 5791–5796. https://doi.org/10.1039/C6TA10685D Mogensen R., Maibach J., Naylor A. J., Younesi R. Capacity fading mechanism of tin phosphide anodes in sodium-ion batteries // Dalton Trans., 2018, v. 47, pp. 10752–10758. https://doi.org/10.1039/c8dt01068d Kamali A. R., Fray D. J. Tin-based materials as advanced anode materials for lithium ion batteries: a review // Adv. Mater. Sci., 2011, v. 27, pp. 14–24. URL: http://194.226.210.10/e-journals/RAMS/no12711/kamali.pdf Kovnir K. A., Kolen’ko Y. V., Baranov A. I., Neira I. S., Sobolev A. V., Yoshimura M., Presniakov I. A., Shevelkov A. V. Sn4As3 revisited: Solvothermal synthesis and crystal and electronic structure // Journal of Solid State Chemistry, 2009, v. 182(5), pp. 630–639. https://doi.org/10.1016/j.jssc.2008.12.007 Semenova G. V., Kononova E. Yu., Sushkova T. P. Polythermal section Sn4P3 – Sn4As3 // Russian J. of Inorganic Chemistry, 2013, v. 58 (9), pp. 1242–1245. https://doi.org/10.7868/S0044457X13090201 Sushkova T. P, Semenova G. V., Naumov A. V., Proskurina E. Yu. Solid solutions in the system Sn-As-P // Bulletin of VSU. Series: Chemistry. Biology. Pharmacy, 2017, v. 3, pp. 30–36. URL: http://www. vestnik.vsu.ru/pdf/chembio/2017/03/2017-03-05.pdf Semenova G. V., Sushkova T. P, Tarasova L. A., Proskurina E. Yu. Phase equilibria in a Sn-As-P system with a tin concentration less than 50 mol. % // Condensed Matter and Interphases, 2017, v. 19(3), pp. 408–416. https://doi.org/10.17308/kcmf.2017.19/218 Semenova G. V., Sushkova T. P., Zinchenko E. N., Yakunin S. V. Solubility of phosphorus in tin monoarsenide // Condensed Matter and Interphases, 2018, v. 20(4), pp. 644-649. https://doi.org/10.17308/kcmf.2018.20/639 Semenova G. V., Goncharov E. G. Solid Solutions Involving Elements of the Fifth Group. – Мoscow, MFTI Publ., 2000, 160 p. (in Russ.) Okamoto H. Phase diagrams for binary alloys, Second Edition. Materials Park, OH.: ASM International, 2010, 810 р. URL: https://www.asminternational. org/...pdf/c36eeb4e-d6ec-4804-b319-e5b0600ea65d Shirotani , Shiba S., Takemura K., Shimomura О., Yagi Т. Pressure-induced phase transitions of phosphorus-arsenic alloys // Physica B: Condensed Matter, 1993, v. 190, pp. 169–176.  https://doi.org/10.1016/0921-4526(93)90462-F Arita M., Kamo K. Measurement of vapor pressure of phosphorus over Sn-P alloys by dew point method // Jpn. Inst. Met., 1985, v. 26(4), pp. 242–250. https://doi.org/10.2320/matertrans1960.26.242 Zavrazhnov A. Yu., Semenova G. V., Proskurina E. Yu., Sushkova T. P. Phase diagram of the Sn–P system // Thermal Analysis and Calorimetry, 2018, v. 134(1), pp. 475–481. https://doi.orgh/10.1007/s10973-018-7123-0 Gokcen N. A. The As-Sn (Arsenic-Tin) system // Bulletin of alloy phase diagrams, 1990, v. 11(3), pp. 271–278. https://doi.org/10.1007/BF03029298

Spinel solid solutions in the systems MgAl2O4–ZnAl2O4 and MgAl2O4–Mg2TiO4

1997 ◽  
Vol 12 (10) ◽  
pp. 2584-2588 ◽  
Author(s):  
M. A. Petrova ◽  
G. A. Mikirticheva ◽  
A. S. Novikova ◽  
V. F. Popova
Keyword(s):  
Solid Solution ◽  
Phase Diagrams ◽  
Melting Temperature ◽  
Solid Solutions ◽  
Spinel Structure ◽  
Room Temperature ◽  
Binary Systems ◽  
Continuous Series ◽  
X Ray ◽  
Spinel Solid Solutions

Phase relations in two binary systems MgAl2O4–ZnAl2O4 and MgAl2O4–Mg2TiO4 have been studied and phase diagrams for them have been constructed. Based on the data of x-ray phase and crystal-optical analyses, the formation of a continuous series of solid solutions with spinel structure between the terminal members of the systems studied has been established. In the MgAl2O4–ZnAl2O4 system the solid solution is stable in the range from room temperature to melting temperature. In the MgAl2O4–Mg2TiO4 system the solid solution decomposes below 1380 °C, yielding the formation of limited regions of homogeneity on the basis of MgAlM2O4 and Mg2+2δ Ti1–δO4. Decomposition of the solid solution is accompanied by crystallization of MgTiO3.

Crystal Chemistry of Stable and Metastable (Rapidly Quenched) B-Metal Alloy Phases

1968 ◽  
Vol 12 ◽  
pp. 23-49 ◽  
Author(s):  
Bill C. Giessen
Keyword(s):  
High Pressure ◽  
Crystal Structures ◽  
Solid Solutions ◽  
Periodic Table ◽  
Rapid Quenching ◽  
Pseudopotential Theory ◽  
Phase Fields ◽  
Disordered Crystal ◽  
Equilibrium Phases ◽  
Qualitative Discussion

AbstractThe crystal structures of elements and alloy phases in the B-metal region (B2(Zn) to B5(As) groups) have been classified into phase fields determined by their position in the periodic table. The limited number of equilibrium phases with element-like, disordered crystal structures and of extended terminal solid solutions has been more than doubled by the addition of metastable phases produced by ultra-rapid quenching from the melt (splat cooling). Strong structural correlations exist. Some high pressure phases have been included; in some cases, a qualitative discussion from the viewpoint of pseudopotential theory is given.

Genetic Planning Method and its Application to Planetary Exploration

2002 ◽  
Vol 124 (4) ◽  
pp. 698-701 ◽  
Author(s):  
Shane Farritor ◽  
Steven Dubowsky
Keyword(s):  
Genetic Algorithm ◽  
Actuator Saturation ◽  
Autonomous Robots ◽  
Action Plan ◽  
Planetary Exploration ◽  
Planning Method ◽  
Analytical Models ◽  
Wheel Slip ◽  
Physical Constraints ◽  
Mars Pathfinder

This paper describes a genetic algorithm planning method for autonomous robots in unstructured environments. It presents the approach and demonstrates its application to a laboratory planetary exploration problem. The method represents activities of the robot with discrete actions, or action modules. The action modules are assembled into an action plan with a Genetic Algorithm (GA). A successful plan allows the robot to complete the task without violating any physical constraints. Plans are developed that explicitly consider constraints such as power, actuator saturation, wheel slip, and vehicle stability. These are verified using analytical models of the robot and environment. The methodology is described in the context of planetary exploration similar to the NASA Mars Pathfinder mission. More aggressive missions are planned where rovers will explore scientifically important areas that are difficult to reach (e.g., ravines, craters, dry riverbeds, and steep cliffs). The proposed approach is designed for such areas.

Phase diagrams and mechanical properties of TiC-SiC solid solutions from first-principles

Calphad ◽  
2019 ◽  
Vol 66 ◽  
pp. 101643 ◽  
Author(s):  
N.R. Mediukh ◽  
V.I. Ivashchenko ◽  
P.E.A. Turchi ◽  
V.I. Shevchenko ◽  
Jerzy Leszczynski ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Diagrams ◽  
Solid Solutions ◽  
First Principles

Phase diagrams of the system of solid solutions Pb1-x(Li1/2La1/2)x(Zr1-yTy)O3in the vicinity of FE-AFE phase stability boundary 3. Effects caused by the coexistence of FE and AFE phases

1995 ◽  
Vol 53 (1) ◽  
pp. 23-37 ◽  
Author(s):  
V. M. Ishchuk ◽  
N. I. Ivashkova ◽  
S. V. Matveev ◽  
V. L. Sobolev ◽  
N. A. Spiridonov ◽  
...  
Keyword(s):  
Phase Diagrams ◽  
Solid Solutions ◽  
Phase Stability ◽  
Stability Boundary
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