Investigation of melting point, Debye frequency and temperature of iron at high pressure

Duc, Nguyen Ba; Hieu, Ho Khac; Hanh, Pham Thi Minh; Hai, Tran Thi; Tuyên, Nguyễn Việt; Ha, Tran Thi

doi:10.1140/epjb/e2020-10083-8

Cited by 10 publications

(3 citation statements)

References 62 publications

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“…As the internal temperature of the battery rises sharply during TR, each aluminum and copper substrate coated with metal oxide and graphite melts and is subsequently ejected from the battery. As stated in the literature, the melting points of pure aluminum, copper, and iron are 660, 1085, and 1538 • C, respectively; thus, the internal temperature of the battery will expectedly attain a temperature of 1100 • C or higher [24][25][26]. In a study, the internal temperature during TR was measured using the K-type electric-heat transfer zone, and the result was approximately 1000 • C This result indirectly confirms that aluminum, copper, and iron melt as a large amount of thermal energy is released within a short period of time inside the battery.…”

Section: Residue Of Lithium-ion Battery Components After Trmentioning

confidence: 98%

Effect of Thermal Abuse Conditions on Thermal Runaway of NCA 18650 Cylindrical Lithium-Ion Battery

et al. 2022

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In energy storage systems and electric vehicles utilizing lithium-ion batteries, an internal short circuit or a thermal runaway (TR) may result in fire-related accidents. Particularly, under non-oxygenated conditions, a fire can spread as a result of TR. In this study, a TR experiment was performed on a nickel–cobalt–aluminum 18650 cylindrical lithium-ion battery via thermal conduction. The time required to attain TR (temperature range: 250–500 °C) was drastically reduced from approximately 1200 s to 1 s. The chemical reaction rate of thermal runaway was classified according to temperature into two global mechanisms and applied to the Arrhenius equation, thereby yielding a correlation between plate temperature (TP) and time difference of TR times ∆t (i.e., t1−t0 or t2−t0). As a result, activation energy for the overall reaction of the TR was estimated to be 39.9 kJ/mol. Furthermore, the safety guarantee time mandated by the safety regulation for vehicle batteries is 5 min; an analysis of the experiment results reveals that the following conditions can be satisfied: TP = 308.4 °C, Δtt1−t0 = 5 min; TP = 326.2 °C, Δtt2−t0 = 5 min. The experiment results offer a scientific basis for predicting the time of occurrence of TR and establishing safety standards.

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Section: Residue Of Lithium-ion Battery Components After Trmentioning

confidence: 98%

Effect of Thermal Abuse Conditions on Thermal Runaway of NCA 18650 Cylindrical Lithium-Ion Battery

et al. 2022

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“…One important way of circumventing this problem has been to perform measurements under more modest conditions and then to extrapolate the results to more extreme situations. For example, melting temperatures at very high densities are often predicted [17][18][19][20][21], using the Lindemann melting criterion, by using such a procedure. However, this requires having enough confidence in the validity of the formula to be used over the entire range of densities -from the relatively low value where the melting temperature is known to the much higher value for which the melting temperature is sought to be predicted This, in turn, implies that the ingredients of the extrapolation formula, such as the Grϋneisen parameter, should also be known accurately as a function of density.…”

Section: Introductionmentioning

confidence: 99%

“…If the data on the vibrational Grϋneisen parameter is not available but the melting temperature data is available for a lower range of densities such an equation can still be used as an extrapolation formula for the melting temperature to higher densities (for example, under conditions that obtain in the interior of the Earth) -after treating the reference vibrational Grϋneisen parameter as a fitting parameter. This can be of direct relevance in understanding the issue of the composition of the inner core of the Earth [12,[26][27][28] as well as the conditions prevalent at the boundary between the liquid outer core and the solid inner core [21,[29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Ab initio study of the density dependence of the Grϋneisen parameter at pressures up to 360 GPa

Roy

Sarkar

2021

Computational Condensed Matter

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The Structural, Mechanical, Lattice Dynamical, and Thermal Properties of 3D Dirac Semimetals BaXBi (X=Cu, Ag, Au) from First‐Principles Calculations

Salmankurt

2022

Physica Status Solidi (b)

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The investigation of structural, mechanical, vibrational, and thermal properties of 3D Dirac semimetal BaXBi (X = Cu, Ag, Au) has been executed within density functional theory for the first time in detail. Available experimental lattice parameters are consistent with obtained data. The mechanical stability conditions for hexagonal structure are confirmed by obtained elastic constants. They are used to find out bulk modulus, B/G ratio, shear ratio, Poisson's ratio, Debye temperature, and minimum thermal conductivity of the materials. The results reveal that these semimetals are in brittle manner. BaCuBi is the hardest material among the compounds. Bonding character for all compounds is dominantly ionic. BaAuBi has the lowest thermal conductivity. Next, vibrational properties are examined and discussed. The crystals are also found to be dynamically stable because there are no negative frequencies in all k‐direction of the crystal. Lastly, the thermodynamic properties have been performed and discussed. This work will provide useful information for both ZrBeSi‐type structure compounds and 3D Dirac semimetals.

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Investigation of melting point, Debye frequency and temperature of iron at high pressure

Cited by 10 publications

References 62 publications

Effect of Thermal Abuse Conditions on Thermal Runaway of NCA 18650 Cylindrical Lithium-Ion Battery

Effect of Thermal Abuse Conditions on Thermal Runaway of NCA 18650 Cylindrical Lithium-Ion Battery

Ab initio study of the density dependence of the Grϋneisen parameter at pressures up to 360 GPa

The Structural, Mechanical, Lattice Dynamical, and Thermal Properties of 3D Dirac Semimetals BaXBi (X=Cu, Ag, Au) from First‐Principles Calculations

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