Academic literature on the topic 'Thermoelectric tension'

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Journal articles on the topic "Thermoelectric tension"

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PLEVACHUK, YURIY, VASYL SKLYARCHUK, GERNOT POTTLACHER, et al. "The liquid AlCu4TiMg alloy: thermophysical and thermodynamic properties." High Temperatures-High Pressures 49, no. 1-2 (2020): 61–73. http://dx.doi.org/10.32908/hthp.v49.847.

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In this study, some structure-sensitive thermophysical properties, namely, thermal conductivity, thermoelectric power, density and surface tension of liquid AlCu4TiMg alloy, as one of the most promising cast alloys to fabricate components for cars, aircraft and other complex engineering products, were investigated. Thermoelectric power was measured in a wide temperature range by the four-point contact method. Thermal conductivity was investigated by the steady-state concentric cylinder method. The oscillating drop technique combined with electromagnetic levitation was used for density and surf
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Dobosz, A., Yu Plevachuk, V. Sklyarchuk, B. Sokoliuk, and T. Gancarz. "The influence of Li on the thermophysical properties of liquid Ga–Sn–Zn eutectic alloys." Journal of Materials Science: Materials in Electronics 30, no. 20 (2019): 18970–80. http://dx.doi.org/10.1007/s10854-019-02254-4.

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Abstract The Ga–Li system is very attractive for the development of microelectronic and Li-ion cell applications as negative electrodes. In this study, thermophysical properties such as density, surface tension, viscosity, thermal and electrical conductivity, and thermoelectric power were investigated. Taking into account the intermetallic compounds occurring in Ga–Li, the measurements were conducted in a temperature range of 323–773 K. The experimentally obtained results revealed lower density and surface tension with increasing Li additions. The viscosity, electrical conductivity and thermoe
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Li, Guodong, Qi An, Sergey I. Morozov, et al. "Determining ideal strength and failure mechanism of thermoelectric CuInTe2 through quantum mechanics." Journal of Materials Chemistry A 6, no. 25 (2018): 11743–50. http://dx.doi.org/10.1039/c8ta03837f.

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Kumar, Pawan, Meenu Gupta, and Vineet Kumar. "Microstructural analysis and multi response optimization of WEDM of Inconel 825 using RSM based desirability approach." Journal of the Mechanical Behavior of Materials 28, no. 1 (2019): 39–61. http://dx.doi.org/10.1515/jmbm-2019-0006.

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AbstractIncreasing demand of aerospace industry for more heat resistant and tough material have open up the possibility of the use of Inconel 825 for making of combustor casing and turbine blades. Because of its robust nature, Inconel 825 is a difficult-to-cut material with conventional methods. Wire-cut electrical discharge machining (WEDM), a non traditional method uses thermoelectric erosion principle to produce intricate shape and profiles of such difficult-to-cut material. In this study, various operating parameters of WEDM are optimized using desirability approach and microstructural beh
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Price, J. M., and F. R. Wilmoth. "Elevated body temperature and increased blood vessel sensitivity in spontaneously hypertensive rats." American Journal of Physiology-Heart and Circulatory Physiology 258, no. 4 (1990): H946—H953. http://dx.doi.org/10.1152/ajpheart.1990.258.4.h946.

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Body temperature (BT) was significantly greater in spontaneously hypertensive rats (SHR) than in Wistar-Kyoto (WKY) rats regardless of the time of day, length of rectal probe, sex, age, or commercial vendor. Bath temperature (theta) for excised aortic rings was controlled by a thermoelectric Peltier module with an accuracy of 0.1 degree C. At peak force in individual contractions of norepinephrine (NE) dose-response experiments, theta was changed from 37 to 39 degrees C. Active and resting wall tension (Tw) were increased, and the mean effective dose (ED50) was decreased in the SHR aorta with
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Zou, Chunpeng, Chihou Lei, Daifeng Zou, and Yunya Liu. "Uniaxial Tensile Strain Induced the Enhancement of Thermoelectric Properties in n-Type BiCuOCh (Ch = Se, S): A First Principles Study." Materials 13, no. 7 (2020): 1755. http://dx.doi.org/10.3390/ma13071755.

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It is well known that the performance of thermoelectric measured by figure of merit ZT linearly depends on electrical conductivity, while it is quadratic related to the Seebeck coefficient, and the improvement of Seebeck coefficient may reduce electrical conductivity. As a promising thermoelectric material, BiCuOCh (Ch = Se, S) possesses intrinsically low thermal conductivity, and comparing with its p-type counterpart, n-type BiCuOCh has superior electrical conductivity. Thus, a strategy for increasing Seebeck coefficient while almost maintaining electrical conductivity for enhancing thermoele
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Takayama, Yoshimasa, T. Abe, T. Yashiro, Hideo Watanabe, and Hajime Kato. "Fabrication of Structural Composite Accompanied with a Function of Thermoelectric Conversion." Materials Science Forum 561-565 (October 2007): 743–46. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.743.

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The composite accompanied with a function of thermoelectric conversion has been fabricated. It was a fiber metal laminate (FML) consisting of two aluminum alloy sheets of 0.5mm thickness and a central layer of glass fiber reinforced plastic (GFRP). The central layer with a thickness of 1mm included thermoelectric elements of Bi-Te based alloys between glass fibers. The mechanical properties of FML with and without the thermoelectric elements were evaluated by tensile and bending test. The thermomechanical properties were measured by a potentiometer for a module with heated and cooled sides, an
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Bera, Jayanta, and Satyajit Sahu. "Strain induced valley degeneracy: a route to the enhancement of thermoelectric properties of monolayer WS2." RSC Advances 9, no. 43 (2019): 25216–24. http://dx.doi.org/10.1039/c9ra04470a.

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Strain induced valley degeneracy results enhancement of thermoelectric properties of monolayer WS<sub>2</sub>. Electron valleys and hole valleys become degenerate by applying compressive and tensile strain, respectively.
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Lv, H. Y., W. J. Lu, D. F. Shao, H. Y. Lu, and Y. P. Sun. "Strain-induced enhancement in the thermoelectric performance of a ZrS2monolayer." Journal of Materials Chemistry C 4, no. 20 (2016): 4538–45. http://dx.doi.org/10.1039/c6tc01135g.

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The thermoelectric performance of the ZrS<sub>2</sub>monolayer is greatly enhanced by the biaxial tensile strain, due to the simultaneous increase of the Seebeck coefficient and decrease of the thermal conductivity.
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Konabe, Satoru, Shiro Kawabata, and Takahiro Yamamoto. "Thermoelectric properties of bilayer phosphorene under tensile strain." Surface and Interface Analysis 48, no. 11 (2016): 1231–34. http://dx.doi.org/10.1002/sia.6094.

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Dissertations / Theses on the topic "Thermoelectric tension"

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Tuckerman, James K. "Capillary Self-Assembly and its Application to Thermoelectric Coolers." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3704.

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The thermoelectric effect was discovered well over a century ago, yet performance has not shown improvement until recent years. Prior work has shown that the thermoelectric effect can be enhanced by the use of microscale pieces of thermoelectric material. Conventional assembly techniques are inadequate to deal with parts of this size, making it necessary to find a suitable alternative before these devices can be made economically. Capillary self-assembly is a promising alternative to conventional techniques. This method employs the use of preparing substrates with areas of favorable surface te
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Fries, Lukáš. "Výzkum bezolovnatých pájecích slitin z pohledu termoelektrických napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-402136.

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The thesis deals with the theoretical investigation of the thermoelectric tensions in lead-free solder. The theory introduces the reader to the formation and composition of solder joints, thermoelectric properties and behavior in circuits. Part of the thesis is the design and optimization of the measuring tool for lead-free solder and product samples with measuring.
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Mhiaoui, Souad. "Physical properties of lead free solders in liquid and solid state." Doctoral thesis, Universitätsbibliothek Chemnitz, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200800401.

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The European legislation prohibits the use of lead containing solders in Europe. However, lead free solders have a higher melting point (typical 20%) and their mechanical characteristics are worse. Additional problems are aging and adhesion of the solder on the electronic circuits. Thus, research activities must focus on the optimization of the properties of Sn-Ag-Cu based lead free solders chosen by the industry. Two main objectives are treated in this work. In the center of the first one is the study of curious hysteresis effects of metallic cadmium-antimony alloys after thermal cycles by me
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Mhiaoui, Souad. "Physical properties of lead free solders in liquid and solid state." Doctoral thesis, 2007. https://monarch.qucosa.de/id/qucosa%3A18889.

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The European legislation prohibits the use of lead containing solders in Europe. However, lead free solders have a higher melting point (typical 20%) and their mechanical characteristics are worse. Additional problems are aging and adhesion of the solder on the electronic circuits. Thus, research activities must focus on the optimization of the properties of Sn-Ag-Cu based lead free solders chosen by the industry. Two main objectives are treated in this work. In the center of the first one is the study of curious hysteresis effects of metallic cadmium-antimony alloys after thermal cycles by me
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Book chapters on the topic "Thermoelectric tension"

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Newnham, Robert E. "Galvanomagnetic and thermomagnetic phenomena." In Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.003.0022.

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The Lorentz force that a magnetic field exerts on a moving charge carrier is perpendicular to the direction of motion and to the magnetic field. Since both electric and thermal currents are carried by mobile electrons and ions, a wide range of galvanomagnetic and thermomagnetic effects result. The effects that occur in an isotropic polycrystalline metal are illustrated in Fig. 20.1. As to be expected, many more cross-coupled effects occur in less symmetric solids. The galvanomagnetic experiments involve electric field, electric current, and magnetic field as variables. The Hall Effect, transverse magnetoresistance, and longitudinal magnetoresistance all describe the effects of magnetic fields on electrical resistance. Analogous experiments on thermal conductivity are referred to as thermomagnetic effects. In this case the variables are heat flow, temperature gradient, and magnetic field. The Righi–Leduc Effect is the thermal Hall Effect in which magnetic fields deflect heat flow rather than electric current. The transverse thermal magnetoresistance (the Maggi–Righi–Leduc Effect) and the longitudinal thermal magnetoresistance are analogous to the two galvanomagnetic magnetoresistance effects. Additional interaction phenomena related to the thermoelectric and piezoresistance effects will be discussed in the next two chapters. In tensor form Ohm’s Law is . . .Ei = ρijJj , . . . where Ei is electrical field, Jj electric current density, and ρij the electrical resistivity in Ωm. In describing the effect of magnetic field on electrical resistance, we expand the resistivity in a power series in magnetic flux density B. B is used rather than the magnetic field H because the Lorentz force acting on the charge carriers depends on B not H.
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Conference papers on the topic "Thermoelectric tension"

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Wu, Yongjia, Lei Zuo, and Kan Sun. "Modeling the Selective Laser Melting of Multi-Component Thermoelectric Powders." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86072.

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Thermoelectrics enables thermal and electrical energy conversion or device cooling without any moving parts. It has remained a significant challenge to manufacture compact and high performance thermoelectric modules in a large volume using the conventional methods because of their drawbacks in practice, such as the long processing time and misalignment of individual thermoelectric elements. Selective laser melting (SLM) based additive manufacturing approach might offer a unique method to fabricate the low cost, reliable, highly efficient, scalable, and environmentally friendly thermoelectric m
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Paul, Abhijeet, Kai Miao, Ganesh Hegde, Saumitra Mehrotra, Mathieu Luisier, and Gerhard Klimeck. "Enhancement of thermoelectric efficiency by uniaxial tensile stress in n-type GaAs nanowires." In 2011 IEEE 11th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2011. http://dx.doi.org/10.1109/nano.2011.6144525.

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Xu, Yaoyao, and Gang Li. "Modeling of Strain-Induced Phonon Thermal Conductivity Reduction in Thermoelectric Nanocomposites." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-66574.

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In this paper, we study strain effects on the phonon thermal conductivity of 2-D Si/Ge nanocomposites. Lattice dynamics is employed for the calculation of the phonon scattering properties as a function of strain. Cauchy-Born rule is used to model the deformed configuration of the atoms. The effective thermal conductivity of the nanocomposite material is modeled by using a modified effective medium approximation (EMA) approach. The strain effects are incorporated into the modified EMA through the strain dependent phonon mean free path. The effective thermal conductivity of the strained nanocomp
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Unni, Vineet, and Joseph P. Feser. "Mode Resolved Continuum Mechanics Model of Phonon Scattering From Embedded Cylinders." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7219.

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Phonon scattering from media with embedded spherical nanoparticles has been studied extensively over the last decade due to its application to reducing the thermal conductivity of thermoelectric materials. However, similar studies of thermal transport in fiber-embedded media have received little attention. Calculating the thermal conductivity tensor from microscopic principles requires knowledge of the scattering cross section spanning all possible incident elastic wave orientations, polarizations and wavelengths including the transition from Rayleigh to geometric scattering regimes. In this p
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Samvedi, Vikas, and Vikas Tomar. "Role of Interface Thermal Boundary Resistance, Straining and Morphology in Thermal Conductivity of a Set of Si-Ge Superlattices and Biomimetic Si-Ge Nanocomposites." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44644.

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Nanoscale engineered materials with tailored thermal properties are desirable for applications such as highly efficient thermoelectric, microelectronic and optoelectronic devices. It has been shown earlier that by judiciously varying interface thermal boundary resistance (TBR) thermal conductivity in nanostructures could be controlled. Two types of nanostructures that have gained significant attention owing to the presence of TBR are superlattices and nanocomposites. A systematic comparison of thermal behavior of superlattices and nanocomposites considering their characteristic structural fact
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Samvedi, Vikas, and Vikas Tomar. "Role of Interface Thermal Boundary Resistance, Straining, and Morphology in Thermal Conductivity of a Set of Si-Ge Superlattices and Biomimetic Si-Ge Nanocomposites." In ASME 2011 Pacific Rim Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/ipack2011-52284.

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Nanoscale engineered materials with tailored thermal properties are desirable for applications such as highly efficient thermoelectric, microelectronic and optoelectronic devices. It has been shown earlier that by judiciously varying interface thermal boundary resistance (TBR) thermal conductivity in nanostructures could be controlled. Two types of nanostructures that have gained significant attention owing to the presence of TBR are superlattices and nanocomposites. A systematic comparison of thermal behavior of superlattices and nanocomposites considering their characteristic structural fact
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