Relevant bibliographies by topics / Sn-Te system

Academic literature on the topic 'Sn-Te system'

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Published: 6 September 2023

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Journal articles on the topic "Sn-Te system"

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Aliev, O. M., N. R. Akhmedova, V. M. Ragimova, D. S. Azhdarova, and E. A. Bakhshalieva. "Yb-Sn-Te ternary system." Russian Journal of Inorganic Chemistry 54, no. 11 (November 2009): 1830–34. http://dx.doi.org/10.1134/s0036023609110230.

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Kumar, Bhupendra, Manas Paliwal, Chandra Sekhar Tiwary, and Min-Kyu Paek. "Thermodynamic Optimization of the Ternary Ga-Sn-Te System Using Modified Quasichemical Model." Metals 11, no. 9 (August 30, 2021): 1363. http://dx.doi.org/10.3390/met11091363.

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Thermoelectric (TE) materials are of great interest to many researchers because they directly convert electric and thermal energy in a solid state. Various materials such as chalcogenides, clathrates, skutterudites, eutectic alloys, and intermetallic alloys have been explored for TE applications. The Ga-Sn-Te system exhibits promising potential as an alternative to the lead telluride (PbTe) based alloys, which are harmful to environments because of Pb toxicity. Therefore, in this study, thermodynamic optimization and critical evaluation of binary Ga-Sn, binary Sn-Te, and ternary Ga-Sn-Te systems have been carried out over the whole composition range from room temperature to above liquidus temperature using the CALPHAD method. It is observed that Sn-Te and Ga-Te liquids show the strong negative deviation from the ideal solution behavior. In contrast, the Ga-Sn liquid solution has a positive mixing enthalpy. These different thermodynamic properties of liquid solution were explicitly described using Modified Quasichemical Model (MQM) in the pair approximation. The asymmetry of ternary liquid solution in the Ga-Sn-Te system was considered by adopting the toop-like interpolation method based on the intrinsic property of each binary. The solid phase of SnTe was optimized using Compound Energy Formalism (CEF) to explain the high temperature homogeneity range, whereas solid solution, Body-Centered Tetragonal (BCT) was optimized using a regular solution model. Thermodynamic properties and phase diagram in the Ga-Sn-Te and its sub-systems were reproduced successfully by the optimized model parameters. Using the developed database, we also suggested several ternary eutectic compositions for designing TE alloy with improved properties.
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Sharma, R. C., and Y. A. Chang. "The Sn−Te (Tin-Tellurium) system." Bulletin of Alloy Phase Diagrams 7, no. 1 (February 1986): 72–80. http://dx.doi.org/10.1007/bf02874985.

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Jain, Ashish, R. Pankajavalli, R. Babu, S. Anthonysamy, and V. Ganesan. "Thermodynamic studies on Sn–Te–O system." Journal of Thermal Analysis and Calorimetry 112, no. 1 (September 28, 2012): 109–16. http://dx.doi.org/10.1007/s10973-012-2648-0.

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Zhan, Yongzhong, Jianbo Ma, Guanghua Zhang, Zhaohua Hu, and Chunhui Li. "Phase equilibria of Gd–Sn–Te system at Te rich corner." Journal of Alloys and Compounds 475, no. 1-2 (May 2009): 281–85. http://dx.doi.org/10.1016/j.jallcom.2008.08.015.

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Hamodi, A., Natheer B. Mahmood, Y. I. Hamodi, Farqad R. Saeed, and K. K. Naji. "Electronic structure models for lead chalcogenide system." Physica Scripta 97, no. 3 (February 2, 2022): 034001. http://dx.doi.org/10.1088/1402-4896/ac4dd0.

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Abstract Pb1-x Sn x Te is a topological crystalline insulator system with an even number of band Dirac cone at 001,110 and 111 orientations, which represent a trivial system under Kane Mele classification. However, in the past few years, the topological surface states feature in Pb1-x Sn x Te that protected by mirror symmetry drew attention. In contrast to Kane Mele’s topological material that protects by time-reversal symmetry. Pb1-x Sn x Te system has a crystal structure phase transition that can drive the topological features of the system. A systematic study on the energy band gap versus temperature and composition shows an interesting regime at x = (0.3–0.7) and T = 70–130 K. (i.e. the topological crystalline insulator regime, phase transition regime). In this paper, we focused on how the following parameters (energy bandgap, temperature T, composition x) connect by three stander models.
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Haruvi-Busnach, I., J. Dror, and N. Croitoru. "Chalcogenide glasses Ge–Sn–Se, Ge–Se–Te, and Ge–Sn–Se–Te for infrared optical fibers." Journal of Materials Research 5, no. 6 (June 1990): 1215–23. http://dx.doi.org/10.1557/jmr.1990.1215.

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Chalcogenide glasses of the systems Ge–Sn–Se, Ge–Se–Te, and Ge–Sn–Se–Te have been prepared. Several compositions were found suitable for drawing fibers for CO2 laser radiation (λ = 10.6 μm) transmission. The glasses were characterized by x-ray diffraction, DSC (Differential Scanning Calorimetry), SEM with EDX analysis, FTIR spectrometry, density, and microhardness measurements. The glass transition temperature and microhardness of Ge–Se–Sn and Ge–Sn–Se–Te glasses decreased with increasing Sn content, for most of the samples. The region of high IR transparency of Ge–Se–Sn, Ge–Se–Te, and Ge–Sn–Se–Te glasses was slightly expanded (1–2 μm) toward longer wavelengths, compared to Ge–Se glasses, mainly for the glasses containing 70 at.% Se. The intensity of the impurity absorption peak of Ge–O (at λ ∼ 12.8 μm), which usually appears in Ge–Se glasses, was reduced or absent in Ge–Sn–Se–Te glasses. The best fibers were produced with the glass composition Ge–0.8Sn0.2Se3.5Te0.5. An attenuation of 20 dB/m at 10.6 μm, and a transmitted maximum power density of 2.4 ⊠ 106 W/m2 were measured. The mechanical and optical characteristics of these glasses have been related to the glasses structure. Corresponding to the reduced masses of the bonds formed in the Ge–Sn–Se–Te system (in the amorphous region), it is expected that the multiphonon edge is slightly shifted. As a consequence, as was measured, the transparency region has been expanded by less than 2 μm toward longer wavelengths.
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Aramanda, Shanmukha Kiran, Sai Kiran Salapaka, Sumeet Khanna, Kamanio Chattopadhyay, and Abhik Choudhury. "Exotic colony formation in Sn-Te eutectic system." Acta Materialia 197 (September 2020): 108–21. http://dx.doi.org/10.1016/j.actamat.2020.07.036.

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Kattner, U., H. L. Lukas, and G. Petzow. "Optimization and calculation of the Sn-Te system." Journal of the Less Common Metals 114, no. 1 (December 1985): 129–44. http://dx.doi.org/10.1016/0022-5088(85)90397-2.

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Chiu, Chen-nan, Chia-ming Hsu, Sinn-wen Chen, and Hsin-jay Wu. "Phase Equilibria of the Sn-Bi-Te Ternary System." Journal of Electronic Materials 41, no. 1 (August 18, 2011): 22–31. http://dx.doi.org/10.1007/s11664-011-1730-x.

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Dissertations / Theses on the topic "Sn-Te system"

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MAJID, MUSTAPHA. "Etude structurale des verres de chalcogenures se#1#-#xte#x par absorption des rayons x, et etude du systeme ternaire se-te-sn." Paris 11, 1996. http://www.theses.fr/1996PA112453.

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Ce travail de these presente les resultats obtenus sur le systeme ternaire se-te-sn. Ont ete envisages: la structure des verres chalcogenures du systeme se-te, et l'analyse thermodynamique du systeme ternaire. La structure des alliages vitreux du systeme se-te a ete etudiee par spectroscopie d'absorption des rayons x. Les resultats structuraux de la premiere sphere de coordination decrivent bien l'environnement atomique local de chacun des elements constitutifs (se et te). Les variations structurales induites par changement de composition ont ete envisagees. Un modele structural a ete propose pour interpreter les resultats structuraux de la deuxieme sphere de coordination. L'analyse thermodynamique du systeme ternaire se-te-sn a ete effectuee par les techniques suivantes: analyse thermique differentielle, analyse calorimetrique differentielle et analyse radiocristallographique sur poudre. Le systeme binaire sn-se a ete reetudie, l'etude experimentale a mis en evidence deux invariants, un peritectique et un eutectoide autour du compose snse. L'optimisation des coefficients de l'enthalpie libre de chaque phase a ete realisee a l'aide du programme du dr h. L. Lukas. L'etude experimentale du systeme ternaire se-te-sn, a mis en evidence une zone de demixtion liquide-liquide qui part du binaire sn-se et se referme sur elle meme. Trois lignes se sont revelees avoir un comportement quasi-binaire et six reactions invariantes ternaires ont ete mises en evidence (trois eutectiques ternaires et trois quasi-peritectiques ternaires)
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Chang, Chun-fei, and 張鈞斐. "Sn/(Bi2Te3)0.25(Sb2Te3)0.75 interfacial reaction and phase equilibria of Sn-Sb-Te system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/59134128449586144575.

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Ngai, Tung-Wai Leo. "Correlation of the semiconducting properties with the thermodynamics and phase equilibria of the Pb-Sn-Te system." 1987. http://catalog.hathitrust.org/api/volumes/oclc/15646907.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1987.
Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 172-191).
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Kiran, Aramanda Shanmukha. "Exotic eutectic microstructures." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5476.

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Solidification of eutectic systems delivers compelling examples of microstructure formation, which makes the phenomena intriguing to many engineers and scientists. Therefore, eutectic solidification is extensively studied experimentally, theoretically, and numerically. However, some exotic eutectic microstructures are still not understood, particularly the systems that exhibit anisotropy. The main objective of this thesis is to explore the microstructure formation in exotic systems during solidification. As directional solidification is a convenient way (imposes the temperature gradient, solidification velocity accurately and independently) to study the microstructure formation, the first part of the work was directed towards the development of directional solidification configuration. Subsequently, we investigated the microstructure formation in three different exotic eutectic systems. In the first system (Sn-Zn eutectic), we study the formation of two-phase microstructures with endeavors to bring new inferences, as the volume percentage of the (Zn)-phase in the eutectic is less than 10%, so one would expect it to form rods in the matrix of (Sn)-phase; instead, thin lamellae are observed. We claim that the rod-lamellar transition and well-defined lamellar orientation are due to the anisotropy of the free energy of the solid-solid interfaces. We deploy various methods/experiments for confirming the evidence of solid-solid interface anisotropy. We also provide the crystallographic orientation relationships between BCT-(Sn) and HCP-(Zn) in steady-state microstructures. In the second system (SnTe-Te eutectic), we investigate the evolution of complex patterns due to the addition of ternary impurities in the Sn-Te eutectic system that contains trigonal (Te) and an intermetallic SnTe phase with a cubic crystal structure. In this work, we examine the origin of such a microstructure that arises due to a two-phase growth instability induced by impurity addition. The binary eutectics (Sn-Te) and ternary eutectics (Sn-Te with an impurity addition) are directionally solidified at different interfacial velocities in order to study morphological evolution. The binary alloy exhibits a rod-like or an interconnected string of rods morphology, while the addition of a third component leads to a diffusive instability (similar to a Mullins-Sekerka instability) that results in the formation of two-phase colonies. The onset of instability depends on both the growth velocity and impurity concentration, while the growth direction of the cells is normal to the (0001) of (Te) and (111) of SnTe. Through the extensive use of multiple characterization techniques, we have explored the morphological characteristics and crystallography of these colonies. The colonies have a complex internal structure that bears a three-fold symmetry reminiscent of the trigonal symmetry of the (Te) crystal, arising possibly because of strong anisotropy in the solid-liquid interfacial energy or in the kinetics of growth. For the different impurity additions (Ag, Cu, Ge, In, Sb), the internal eutectic morphology of the colony due to the addition of Ag, Cu, Ge, In is different from that observed for the addition of Sb. The latter leads to the formation of lamellae, while a rod-like feature could be observed for impurities Ag, Cu, Ge, In. In the third system (Ag-Cu-Sb), we have investigated the formation of three-phase microstructures of the Ag-Cu-Sb eutectic system that contains two intermetallic compounds, i.e., silver antimonide-Ag3Sb, copper antimonide-Cu2Sb and an antimony rich solid-solution (Sb). A vast range of microstructures in this system arise due to the possibilities of both invariant reactions giving rise to three-phase eutectic growth as well univariant reactions that are amenable to diffusive instabilities giving rise to microstructures involving two-phase colonies along with three-phase eutectic morphologies. The different ternary compositions are morphologically and crystallographically investigated at various velocities. The invariant three-phase eutectic reactions give rise to exotic hollow, dog bone, and fibrous (Sb) crystals along with lamellar/rod type morphologies of the Cu2Sb phase, while the Ag3Sb has a continuous morphology. The different microstructures have an underlying crystallographic basis and distinct growth mechanisms that are influenced by the crystal orientation with the imposed temperature gradient. Among the compositions that give rise to two-phase colonies, an exciting structure emerges in the Ag3Sb-(Sb) two-phase colonies that exhibit a complex 3-fold fish skeleton structure reminiscent of the rhombohedral (Sb) crystals. Similarly, the Ag3Sb-Cu2Sb colonies exhibit a complex plate morphology influenced by the anisotropic nature of the Ag3Sb-Cu2Sb interface.
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Chiu, Chen-nam, and 邱政男. "Phase equilibria and interfacial reactions of Sn-Bi-Sb-Te and Sn-Bi-Te-Se systems." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/32340004747754457127.

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Book chapters on the topic "Sn-Te system"

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Predel, F. "Thermodynamic properties of Sn-Te (tin-tellurium) system." In Phase Equilibria, Crystallographic and Thermodynamic Data of Binary Alloys, 248–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-24977-8_152.

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"Cu-Sn-Te (Copper-Tin-Tellurium)." In Non-Ferrous Metal Systems. Part 1, 1–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/10915981_27.

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"Systems with four chemical elements. In-Na-O-P to Sn-Te-Tl-Zr." In Handbook, 1033–91. De Gruyter, 2011. http://dx.doi.org/10.1515/9783110268935.1033.

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Conference papers on the topic "Sn-Te system"

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Haruvi-Busnach, I., Jacob Dror, and Nathan I. Croitoru. "Infrared optical glasses and fibers based on the chalcogenide glasses system Ge-Sn-Se-Te." In OE/LASE '90, 14-19 Jan., Los Angeles, CA, edited by James A. Harrington and Abraham Katzir. SPIE, 1990. http://dx.doi.org/10.1117/12.18630.

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Babich, Alexey V., and Maxim Rogachev. "Investigation of Thermal Properties and Thermal Stability of the Sn-Pb-Te System Materials for the Thermoelectric Generator Application." In 2020 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus). IEEE, 2020. http://dx.doi.org/10.1109/eiconrus49466.2020.9039058.

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Klimov, Alexander E., and Vladimir N. Shumsky. "Far infrared and submillimeter range photosensitive devices based on Pb 1-x Sn x Te films: results and perspectives." In Optical Systems Design 2005, edited by Jean-Pierre Chatard and Peter N. J. Dennis. SPIE, 2005. http://dx.doi.org/10.1117/12.621603.

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Reports on the topic "Sn-Te system"

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Neyedley, K., J. J. Hanley, P. Mercier-Langevin, and M. Fayek. Ore mineralogy, pyrite chemistry, and S isotope systematics of magmatic-hydrothermal Au mineralization associated with the Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328985.

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The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec. The MIC is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate genetic links between deposits and the MIC, mineralized samples from two of the epizonal 'intrusion-related' Au-Cu vein systems (Doyon and Grand Duc Au-Cu) have been characterized using a variety of analytical techniques. Preliminary results indicate gold (as electrum) from both deposits occurs relatively late in the systems as it is primarily observed along fractures in pyrite and gangue minerals. At Grand Duc gold appears to have formed syn- to post-crystallization relative to base metal sulphides (e.g. chalcopyrite, sphalerite, pyrrhotite), whereas base metal sulphides at Doyon are relatively rare. The accessory ore mineral assemblage at Doyon is relatively simple compared to Grand Duc, consisting of petzite (Ag3AuTe2), calaverite (AuTe2), and hessite (Ag2Te), while accessory ore minerals at Grand Duc are comprised of tellurobismuthite (Bi2Te3), volynskite (AgBiTe2), native Te, tsumoite (BiTe) or tetradymite (Bi2Te2S), altaite (PbTe), petzite, calaverite, and hessite. Pyrite trace element distribution maps from representative pyrite grains from Doyon and Grand Duc were collected and confirm petrographic observations that Au occurs relatively late. Pyrite from Doyon appears to have been initially trace-element poor, then became enriched in As, followed by the ore metal stage consisting of Au-Ag-Te-Bi-Pb-Cu enrichment and lastly a Co-Ni-Se(?) stage enrichment. Grand Duc pyrite is more complex with initial enrichments in Co-Se-As (Stage 1) followed by an increase in As-Co(?) concentrations (Stage 2). The ore metal stage (Stage 3) is indicated by another increase in As coupled with Au-Ag-Bi-Te-Sb-Pb-Ni-Cu-Zn-Sn-Cd-In enrichment. The final stage of pyrite growth (Stage 4) is represented by the same element assemblage as Stage 3 but at lower concentrations. Preliminary sulphur isotope data from Grand Duc indicates pyrite, pyrrhotite, and chalcopyrite all have similar delta-34S values (~1.5 � 1 permille) with no core-to-rim variations. Pyrite from Doyon has slightly higher delta-34S values (~2.5 � 1 permille) compared to Grand Duc but similarly does not show much core-to-rim variation. At Grand Duc, the occurrence of Au concentrating along the rim of pyrite grains and associated with an enrichment in As and other metals (Sb-Ag-Bi-Te) shares similarities with porphyry and epithermal deposits, and the overall metal association of Au with Te and Bi is a hallmark of other intrusion-related gold systems. The occurrence of the ore metal-rich rims on pyrite from Grand Duc could be related to fluid boiling which results in the destabilization of gold-bearing aqueous complexes. Pyrite from Doyon does not show this inferred boiling texture but shares characteristics of dissolution-reprecipitation processes, where metals in the pyrite lattice are dissolved and then reconcentrated into discrete mineral phases that commonly precipitate in voids and fractures created during pyrite dissolution.
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