The Specific Heat of Solids at Constant Volume, and the Law of Dulong and Petit.

Lewis, Gilbert N.

doi:10.1021/ja01962a002

Cited by 20 publications

(8 citation statements)

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“…The C v variations of CoCrFeNiTa x are consistent with the prediction of Dulong-Petit, Kepp and Debye Models. [59][60][61] For HEA systems entropy changes are usually dominant because of their rather small formation energies. In contrast to the small DE f values presented above, relatively large entropy contributions were noted in the CoCrFeNiTa x systems.…”

Section: Resultsmentioning

confidence: 99%

Effect of Ta addition on the structural, thermodynamic and mechanical properties of CoCrFeNi high entropy alloys

Zuo

Bao

et al. 2019

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Effect of Ta addition on the structural, thermodynamic and mechanical properties of CoCrFeNi high entropy alloys

Zuo

Bao

et al. 2019

RSC Adv.

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“…Fig. 10(c,d) indicate that pressure has opposite influence on the heat capacity and the effect of temperature on the heat capacity is more significant than that of pressure [19][20][21]. Fig.…”

Section: Methodsmentioning

confidence: 99%

Density Functional Studies of Electronic Structure, Chemical Bonding and Thermodynamic Properties of Ternary Lanthanum-Gold-Cadmium Inorganic Materials

Sagar¹,

Singh²

2018

Asian J. Chem.

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Material chemistry has always been a growing field in the modern research. For the development of new materials, not only the experimental characterization but also theoretical calculations play an important role. Such methods have been found to predict good values of the properties, which have been confirmed experimentally. Density functional theory (DFT) is one such theoretical approach, which provides an appropriate mathematical framework for determining the ground state properties of the crystalline material systems. A class of compounds that has attracted a great deal of attention in recent years is known as ternary rare earth transition metal compounds. There are large numbers of ternary rare earth transition metal compounds with 1:1:1 and 2:2:1 stoichiometry viz. LnAuCd and Ln2Au2Cd (Ln = lanthanides) [1]. In the literature, only structural information [2,3] is available about LnAuCd and Ln2Au2Cd compounds. In these compounds, f-orbital electrons of lanthanide and d-orbital electrons of Au and Cd play an important role in the electronic bonding characterization. Therefore, a special focus has been made on two compounds LaAuCd and La2Au2Cd of LnAuCd and RE2Au2Cd series to study the band structure along with the total and partial density of states to know the origin of chemical bonding. From literature's point of view, the new intermetallic

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“…For the same compounds with a different crystalline structure, a large difference in the C p value is not reasonable. Also, the molar C v (the heat capacity under constant volume) of solid crystals is generally limited to 3R (R is the gas constant) when the temperature is sufficiently higher than the Debye temperature, which is the well‐known Dulong–Petit law . It should also be noted that for solids, the difference between C v and C p is negligible due to the very small PV term.…”

Section: Theoretical and Experimentally Observed δS Values And Appliementioning

confidence: 99%

“…Also, the molar C v (the heat capacity under constant volume) of solid crystals is generally limited to 3R (R is the gas constant) when the temperature is sufficiently higher than the Debye temperature, which is the well-known Dulong-Petit law. [13,14] It should also be noted that for solids, the difference between C v and C p is negligible due to the very small PV term. Therefore, the hypothesis of dΔS/dT %0 is reasonable.…”

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confidence: 99%

Broad Phase Transition of Fluorite‐Structured Ferroelectrics for Large Electrocaloric Effect

Park

Mikolajick

Schroeder

et al. 2019

Phys. Status Solidi RRL

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Field‐induced ferroelectricity in (doped) hafnia and zirconia has attracted increasing interest in energy‐related applications, including energy harvesting and solid‐state cooling. It shows a larger isothermal entropy change in a much wider temperature range compared with those of other promising candidates. The field‐induced phase transition occurs in an extremely wide temperature range, which contributes to the giant electrocaloric effect. This article examines the possible origins of a large isothermal entropy change, which can be related to the extremely broad phase transitions in fluorite‐structured ferroelectrics. While the materials possess a high entropy change associated with the polar–nonpolar phase transition, which can contribute to the high energy performance, the higher breakdown field compared with perovskites practically determines the available temperature range.

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The Specific Heat of Solids at Constant Volume, and the Law of Dulong and Petit.

Cited by 20 publications

References 0 publications

Effect of Ta addition on the structural, thermodynamic and mechanical properties of CoCrFeNi high entropy alloys

Effect of Ta addition on the structural, thermodynamic and mechanical properties of CoCrFeNi high entropy alloys

Density Functional Studies of Electronic Structure, Chemical Bonding and Thermodynamic Properties of Ternary Lanthanum-Gold-Cadmium Inorganic Materials

Broad Phase Transition of Fluorite‐Structured Ferroelectrics for Large Electrocaloric Effect

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