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Coefficients of thermal expansion
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The anharmonic thermal expansion (TE) coefficient of crystalline silver (Ag) has been calculated and analyzed in the temperature-dependent. Based on the anharmonic effective potential, the calculation model is developed using the correlated Debye model and the manybody perturbation approach.
7p
viambani
18-06-2024
1
1
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Part 2 book "Electromagnetic, mechanical and transport properties of composite materials" includes content: Viscoelastic behavior of composites; general introduction to heat transfer; fundamentals of conductive heat transfer; thermal conductivity of composites; thermal conductivity of composites of core shell particles; influence of interfacial contact resistance on thermal conductivity of composites; thermal diffusivity and coefficient of thermal expansion of composites;... and other contents.
203p
dianmotminh00
22-04-2024
6
2
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In this work, the temperature dependence of the anharmonic X-ray absorption fine structure (XAFS) and thermodynamic properties of the crystalline silicon (c-Si) have been investigated. The thermodynamic parameters are derived from the influence of the absorbing and backscattering atoms of all their nearest neighbors in the crystalline lattice with thermal vibrations.
11p
viberkshire
09-08-2023
4
2
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In present paper "Equation of state and thermal expansion of metals with FCC structure: Application to Cu, Al and Ni", by the statistical moment method (SMM) we obtain the equation of state for metals with cubic structure at temperature 0 K and pressure P and from that obtain the expressions of lattice parameter and thermal expansion coefficient for these metals at temperature T and pressure P.
6p
runordie3
27-06-2022
12
2
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Thermodynamic quantities such as mean nearest neighbor distance, free energy, isothermal and adiabatic compressibilities, isothermal and adiabatic elastic modulus, thermal expansion coefficient, heat capacities at constant volume and constant pressure, and entropy of binary interstitial alloys with a body-centered cubic (BCC) structure with a very small concentration of interstitial atoms are derived using the statistical moment method.
10p
tamynhan5
10-12-2020
16
3
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In this study, the theoretical results are applied to the interstitial alloy FeCrSi. The thermodynamic properties of main metal Fe, substitution alloy FeCr and interstitial alloy FeSi are special cases for the thermodynamic properties of interstitial alloy FeCrSi.
10p
tamynhan9
02-12-2020
20
2
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Numerical calculations of the quantities were performed for Fe and W thin films and found to be in good and reasonable agreement with other theoretical results and experimental data. This research proves that thermal expansion coefficients of thin films approach the values of bulk when thin film is about 70 nm thick.
10p
tamynhan9
02-12-2020
16
1
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The moment method in statistical dynamics (SMM) is used to study of thermal expansion coefficients of metallic thin films with body-centered cubic (BCC) structure taking into account the anharmonicity effects of the lattice vibrations and hydrostatic pressures. The explicit expressions coefficients of thermal expansion of metallic thin films are derived in closed analytic forms in terms of the power moments of the atomic displacements.
13p
tamynhan9
02-12-2020
10
1
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Thermodynamic properties of rare-earth metals have been studied using staistical moment method. The analytic expressions of the Helmholtz free energy and thermodynamic quantities were obtained. Present SMM results of nearest neighbor distance, linear thermal expansion coefficient and specific heats at constant pressure for Th and Ce metals are compared with the experimental results.
7p
tamynhan8
04-11-2020
11
1
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The coefficients of thermal expansion of thin metal film with face-centered cubic structure at zero pressure are investigated using the statistical moment method (SMM), including the anharmonic effects of thermal lattice vibration. The Helmholtz free energy, mean-square atomic displacement and linear thermal expansion coefficients are derived in closed analytic forms in terms of the power moments of the atomic displacement.
8p
tamynhan8
04-11-2020
13
1
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Molecular crystals are characterized by strong intramolecular forces and much weaker intermolecular forces. High-pressure spectroscopic studies provide useful data for refining the various model potentials which are used to predict of the physical properties of such systems as well as for the formation of various crystalline phases.
7p
tamynhan8
04-11-2020
16
2
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The moment method in statistical dynamics is used to study the equation of state and thermodynamic properties of the bcc metals taking into account the anharmonicity effects of the lattice vibrations and hydrostatic pressures. The explicit expressions of the lattice constant, thermal expansion coefficient, and the specific heats of the bcc metals are derived within the fourth order moment approximation.
16p
12120609
01-06-2020
12
0
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We have investigated the thermodynamic properties of the cubic zirconia ZrO2 using the statistical moment method in the statistical physics. The free energy, thermal lattice expansion coefficient, specific heats at the constant volume and those at the constant pressure, CV and CP , are derived in closed analytic forms in terms of the power moments of the atomic displacements.
16p
12120609
01-06-2020
9
1
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Research results on 3D modeling of the diamond grain and its bearing layer when sintering diamond grinding wheels are provided in this paper. The influence of the main characteristics of the wheel materials and the wheel production process, namely the quantity of metallic phase within diamond grain, coefficient of thermal expansion of the metallic phase, the modulus of elasticity of bond material and sintering temperature, on the internal stresses arising in grains is investigated. The results indicate that the stresses in the grains are higher in the areas around the metallic phase.
8p
kequaidan1
16-11-2019
21
1
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Derive the analytic expressions and numerically calculate for the concentration of equilibrium vacancies, the mean nearest neighbor distance, the free energy, the thermal expansion coefficient and the heat capacity at constant pressure of interstitial alloy FeCrSi with defect and with body-centered cubic (bcc) structure by the statistical moment method.
11p
viengland2711
23-07-2019
7
0
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In this paper we would like to introduce an alternative derivation method in order to obtain the thermal expansion coefficient of two-phase composite of spherical particles. Our results are the same as Vanin's and other authors'.
7p
thienthanquydu
21-10-2018
20
0
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The thermodynamic properties of the metal thin film with face-centered cubic structure at zero pressure are investigated using the statistical moment method (SMM), including the anharmonicity effects of thermal lattice vibrations. The Helmholtz free energy, linear thermal expansion coefficients, specific heats at the constant volume and those at the constant pressure, CV and Cp are derived in closed analytic forms in terms of the power moments of the atomic displacements.
12p
thuyliebe
12-10-2018
22
0
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The explicit expressions of the lattice constant, thermal expansion coefficient, and specific heats at the constant volume and those at the constant pressure, CV and CP of the metal thin films are derived in closed analytic forms in terms of the power moments of the atomic displacements. The thermodynamic quantities of Au, Ag, Cu and Al metal thin films are calculated as a function of the temperature and pressure, and they are in good agreement with the corresponding results obtained from other theoretical calculations and experimental values.
15p
thuyliebe
09-10-2018
23
1
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This paper presents some thermomechanical characteristics of crosslinked poly(vinyl chloride) (PVC) samples such as glass transition temperature (Tg), softening point (Ts), and linear thermal expansion coefficient (). Probe load of 0.05 N is most suitable to evaluate expansion, softening and contraction of the crosslinked PVC samples.
5p
cumeo4000
01-08-2018
26
0
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To help you Specialized Engineering - Fabrication machine more references in the process of learning and research, invite you to consult the document content, "Stress Analysis Report: Autodesk" expect .Hy reference is useful for you.
26p
nguyenphuchungbg
28-10-2015
45
3
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