ChemInform Abstract: Phase Equilibria, Structure and Properties of Y-Ba Ceramics

ChemInform ◽  
1990 ◽  
Vol 21 (45) ◽  
Author(s):  
V. F. SHAMRAI ◽  
YU. V. EFIMOV ◽  
O. G. KARPINSKII ◽  
A. A. BABAREKO ◽  
G. M. LEITUS ◽  
...  
Keyword(s):  
Phase Equilibria ◽  
Structure And Properties

scholarly journals Фазовые равновесия в системах Ag8SnS6–Cu2SnS3 и Ag2SnS3–Cu2Sn4S9

2019 ◽  
Vol 21 (4) ◽  
pp. 544-551
Author(s):  
Vidadi A. Rzaguliyev ◽  
Oruj S. Kerimli ◽  
Dilbar S. Ajdarova ◽  
Sharafat H. Mammadov ◽  
Ozbek M. Aliev
Keyword(s):  
Crystal Structure ◽  
Experimental Study ◽  
Phase Equilibria ◽  
Single Crystal ◽  
Electromotive Force ◽  
Structure And Properties ◽  
Doctoral Thesis ◽  
X Ray ◽  
Alloys And Compounds

Комплексными методами физико-химического анализа (дифференциально-термический, рентгенофазовый, микроструктурный, измерение микротвердости и определение плотности) изучены фазовые равновесия и построены Т–х фазовые диаграммыв системах Ag8SnS6–Cu2SnS3 и Ag2SnS3–Cu2Sn4S9. Показано, что система Ag8SnS6–Cu2SnS3является квазибинарным сечением квазитройной системы Ag2S-SnS2-Cu2S и относится кпростому эвтектическому типу с ограниченными областями растворимости на основеисходных сульфидов. Координаты эвтектической точки: 50 mol % Ag2SnS3 И Т = 900 К.Растворимость на основе Ag8SnS6 и Cu2SnS3 при эвтектической температуре простираетсядо 20 и 28 mol % соответственно. С уменьшением температуры твердые растворы распадаются и при 300 К составляют 5 и 10 mol %. Установлено, что с увеличением концентрацииAg8SnS6 в твердых растворах (Cu2SnS3)1-х (Ag8SnS6)х параметр кубической решетки увеличивается от а = 0.5445 nm (для чистого Cu2SnS3) до а = 0.725 nm (для состава х = 0.1) т. е. концентрационная зависимость параметра решетки имеет линейный характер.Система Ag2SnS3–Cu2Sn4S9 из-за перитектического плавления Cu2Sn4S9 имеет сложный характер и является частично квазибинарным сечением. Квазибинарность нарушается вобласти концентрации 65-100 mol % Cu2Sn4S9 и выше температуры 900 К. Твердые растворына основе Ag2SnS3 и Cu2Sn4S9 узкие и при 300 К составляют 10; 2.5 mol % соответственно         ЛИТЕРАТУРА1. Wang N., Fan A. K. An experimental study of the Ag2S-SnS2 pseudobinary join // Neues Jahrb. Mineral.-Abh, 1989, v. 160, pp. 33–36.2. Wang N. New data for Ag8SnS6 (canfeildite) and Ag8GeS6 (argyrodite) // Neues Jahrb. Mineral. Monatsh.,1978, pp. 269–272.3. Бабанлы М. Б., Юсибов Ю. А., Абишев В. Т. Трехкомпонентные халькогениды на основе медии серебра. Баку: Изд-во БГУ, 1993, 342 с.4. Parasyuk O. V., Chykhrij S. I., Bozhko V. V., Piskach L. V., Bogdanyuk M. S., Olekseyuk I. D.,Bulatetska L. V., Pekhnyo. Phase diagramm of the Ag2S–HgS–SnS2 system and single crystal prepartion,crystal structure and properties of Ag2HgSnS4 // J. Alloys and Compounds, 2005, v. 399, pp. 32–37. DOI:            https://doi.org/10.1016/j.jallcom.2005.03.0085. Olekseyuk I. D., Dudchak I. B., Piskach L. V. Phase equilibria in the Cu2S–ZnSe–SnS2 // J. Alloys andCompounds, 2004, v. 368, pp. 135–143. https:doi.org/10.1016/j.jallcom.2003.08.0846. Ollitrault-Fitchet R., Rivet J., Flahaut J., et.al. Description du systeme ternaire Ag–Sn–Se // J. Less-Common. Met., 1988, v. 138(2), pp. 241–261. DOI:https://doi.org/10.1016/0022-5088(88)90113-07. Delgado C. E., Mora A. J., Marcano E. Crystal structure refi nement of the semiconducting compoundCu2SnSe3 from X-ray powder difraction data // Mater. Res. Bull., 2003, v. 38, pp. 1949–1955. DOI: https://doi.org/10.1016/j.materresbull.2003.09.0178. Parasyuk O. V., Olekseyuk I. D., Marchuk O. V. The Cu2Se–HgSe–SnSe2 // J. Alloys and Compounds.,1999, v. 287, pp. 197–205. DOI: https//doi.org/10.1016/S0925-8388(99)00047-X9. Parasyuk O. V., Gulay L. D., Piskach L. V., Kumanska Yu. O. The Ag2Se–HgSe–SnSe2 system and thecrystal structure of the Ag2HgSnSe4 // J. Alloys and Сompounds, 2002, v. 339, pp.1 40–143. DOI: https//doi.org/10.1016/S0925-8388(01)01985-510. Babanly M. B., Yusibov Y. A., Babanly N. B. Electromotive force and measucement in several systema.Ed. by S. Kara, Intechneb. Org., 2011, pp. 57–58.11. Gulay L. D., Olekseyuk I. D., Parasyuk O. V. Crystal structure of b-Ag8SnSe6 // J. Alloys and compounds,2002, v. 339, pp. 113–117. DOI: https//doi.org/10.1016/S0925-8388(01)01970-312. Гусейнов Г. М. Получение соединения Ag8SnS6 в среде диметилформамида // Вестн. Томского гос. ун-та. Химия, 2016, № 1(3), c. 24–34. Режим доступа: fi le:///C:/Users/Lab351/Downloads/sub_%20%20in%20dimethylformamide%20medium.pdf (дата обращения: 19.09.2019)13. Gorchov O. Les composes Ag8MX6 (M = Si, Ge, Sn et X = S, Se, Te) // Bull. Soc. Chim. Fr., 1968, № 6.pp. 2263–2275.14. Kokhan O. P. The Interactions in Ag2X–BIVX2 (BIV – Si, Ge, Sn; X – S, Se) systems and the propertiesof compounds. Doctoral Thesis, Uzhgorod, Uzhgorod State Univ., 1996.15. Onoda U., Chen X. A., Sato A., Wada H. Crystal structure and twinning of monoclinic Cu2SnS3 // Mater.Res. Bull., 2000, v. 35, № 8, pp. 1563–1570. DOI: https//doi.org/10.1016/S0025-5408(00)00347-016. Рзагулиев В. А., Керимли О. Ш., Мамедов Ш. Г. Изучение квазитройной системы Ag2S–SnS2–Cu2S по разрезу Ag8SnS6–Cu2SnS3. Труды Международ. научно–практич. конф., Россия, Белгород,2019, c. 18.17. Рзагулиев В. А., Керимли О. Ш., Маме дов Ш. Г. Исследование квазибинарного разреза Cu2SnS3–Ag2SnS3 в квазитройной системеAg2S–Cu2S–SnS2 . Труды XXI Междун. конф., Санкт-Петербург, 2019,c. 20–21.18. Цигика В. В., Переш Е. Ю., Лазарев В. В. и др. Получение и свойства мнонокристаллов соединений/TlPbJ3, Tl3PbJ5, TlSnJ3, TlSn2J5 and Tl3PbBr5 Изв. АН СССР. Неорган. материалы, 1981, т. 17(6), c. 970–974.

Phase equilibria, structure and properties of intermediate phases in the Sm2O3 – Fe2O3 – CoO and Sm2O3 – CaO – CoO systems

2017 ◽  
Vol 718 ◽  
pp. 288-297 ◽  
Author(s):  
A.P. Galayda ◽  
N.E. Volkova ◽  
L.Ya. Gavrilova ◽  
K.G. Balymov ◽  
V.A. Cherepanov
Keyword(s):  
Phase Equilibria ◽  
Structure And Properties ◽  
Intermediate Phases

Phase Equilibria, Crystal Structure, and Properties of Intermediate Oxides in the Sm2 O3 -SrO-CoO System

2017 ◽  
Vol 2017 (26) ◽  
pp. 3285-3292 ◽  
Author(s):  
Nadezhda E. Volkova ◽  
Anastasia V. Maklakova ◽  
Ludmila Ya. Gavrilova ◽  
Vladimir A. Cherepanov
Keyword(s):  
Crystal Structure ◽  
Phase Equilibria ◽  
Structure And Properties

Phase equilibria, structure and properties of YBa ceramics

1990 ◽  
Vol 162 (2) ◽  
pp. 181-195 ◽  
Author(s):  
V.F. Shamrai ◽  
Yu.V. Efimov ◽  
O.G. Karpinskii ◽  
A.A. Babareko ◽  
G.M. Leitus ◽  
...  
Keyword(s):  
Phase Equilibria ◽  
Structure And Properties

Phase equilibria, crystal structure and properties of complex oxides in the Nd 2 O 3 –SrO–CoO system

2017 ◽  
Vol 248 ◽  
pp. 183-191 ◽  
Author(s):  
T.V. Aksenova ◽  
T.G. Efimova ◽  
O.I. Lebedev ◽  
Sh.I. Elkalashy ◽  
A.S. Urusova ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phase Equilibria ◽  
Complex Oxides ◽  
Structure And Properties

Phase equilibria, structure and properties of Y-Ba ceramic

1990 ◽  
Vol 160 (2) ◽  
pp. 309-322
Author(s):  
V.F. Shamrai ◽  
Yu.V. Efimov ◽  
O.G. Karpinskii ◽  
A.A. Babareko ◽  
G.M. Leitus ◽  
...  
Keyword(s):  
Phase Equilibria ◽  
Structure And Properties

Structure of second phases in TiAl alloys containing Cr and B

1991 ◽  
Vol 49 ◽  
pp. 576-577
Author(s):  
Ernest L. Hall ◽  
Shyh-Chin Huang
Keyword(s):  
Grain Size ◽  
Second Phase ◽  
Structure And Properties ◽  
Tial Alloys ◽  
Second Phases ◽  
Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

Relationships between hierarchical structure and properties in macromolecular systems

1987 ◽  
Vol 45 ◽  
pp. 440-443
Author(s):  
E. Baer
Keyword(s):  
Uniaxial Tension ◽  
Hierarchical Structure ◽  
Inorganic Material ◽  
Hierarchical Structures ◽  
Bone Collagen ◽  
Structure And Properties ◽  
Connective Tissues ◽  
Scale Level ◽  
Fibrous Protein ◽  
Macromolecular Systems

The most advanced macromolecular materials are found in plants and animals, and certainly the connective tissues in mammals are amongst the most advanced macromolecular composites known to mankind. The efficient use of collagen, a fibrous protein, in the design of both soft and hard connective tissues is worthy of comment. Very crudely, in bone collagen serves as a highly efficient binder for the inorganic hydroxyappatite which stiffens the structure. The interactions between the organic fiber of collagen and the inorganic material seem to occur at the nano (scale) level of organization. Epitatic crystallization of the inorganic phase on the fibers has been reported to give a highly anisotropic, stress responsive, structure. Soft connective tissues also have sophisticated oriented hierarchical structures. The collagen fibers are “glued” together by a highly hydrated gel-like proteoglycan matrix. One of the simplest structures of this type is tendon which functions primarily in uniaxial tension as a reinforced elastomeric cable between muscle and bone.

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