Phase transformations in an ultralight BCC Mg alloy during anisothermal ageing

Xin, Tongzheng; Tang, Shengqiang; Fan, Jiawei; Cui, Luqing; He, Binbin; Lin, Xin; Tian, Xiaolin; Hou, Haiyun; Zhao, Yuhong; Ferry, Michael

doi:10.1016/j.actamat.2022.118248

Cited by 140 publications

(22 citation statements)

References 77 publications

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“…When precipitate lost coherency with the matrix, its strengthening effect decreased. [ 29 ] In this article, the precipitation‐phase transformation (GP zones → β′→β′) also affects the mechanical properties and thermal conductivity at different aging conditions. Its influence on the mechanical properties and thermal conductivity is discussed as later.…”

Section: Resultsmentioning

confidence: 99%

Improvement Mechanism of Thermal Conductivity in T6/T7‐Treated Al–Si–Mg Cast Alloy: Experimental Studies and Density Functional Theory Calculations

et al. 2022

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In this article, high strength and high thermal conductivity are achieved in T6/T7‐treated Al–9%Si–0.8%Mg alloy. The improvement mechanism of thermal conductivity is discussed by experimental studies and density functional theory calculations. The experimental results indicate that the T7‐treated Al–9%Si–0.8%Mg alloy shows the good overall performances: thermal conductivity of 177.34 W m−1K−1, yield strength of 288 MPa, tensile strength of 314 MPa, and elongation of 9.63%. The β″ precipitates at peak‐aged condition show higher strengthening effect than that of β′ at overaged condition, while the overaged condition is more favorable for improvement of thermal conductivity. The decrease in concentration of solution atoms by precipitation of β″ and β′ enhances periodic field of localized matrix lattice and increases the relaxation time of free electrons in the localized lattice. The decrease in concentration of solution atoms and increase in the number density of β″ and β′ precipitates not only markedly strengthen the mechanical properties but also reduce the scattering positions in Al lattice, resulting in the improvement of thermal conductivity.

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Section: Resultsmentioning

confidence: 99%

Improvement Mechanism of Thermal Conductivity in T6/T7‐Treated Al–Si–Mg Cast Alloy: Experimental Studies and Density Functional Theory Calculations

et al. 2022

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“…[189][190][191][192] Since LDHs have a 2D layered structure, compounding with various 1D and 2D nanomaterials such as carbon nanotubes, graphene and MoS 2 is highly feasible, and the addition of polymerase also enhances the conductivity. [193][194][195] In hybridized LDH nanostructures, the construction of ionic vacancy defects 196,197 and porous structures can alter the crystalline shape and increase the active sites, allowing for a superior level of electrochemical performances. In addition, metal sapphires and Co-precipitation This method has been widely used in practice because of its simplicity, cheapness and stability of the product.…”

Section: Modification Methods Of Hybrid Ldhsmentioning

confidence: 99%

Progress of layered double hydroxide-based materials for supercapacitors

Ren

Sridhar³

et al. 2023

Mater. Chem. Front.

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“…The combination of incredible benefits, such as superb tolerance for perovskite structure defects [3], as well as the availability of outstanding efficient carriers mobility, light (photon) absorption efficiency, and sufficient carrier diffusion lifetimes, made this a strong contender for exceptional solar cell photovoltaic applications and performance [4,5]. Since 2009, when the organic metal halide perovskite was first incorporated into the titanium dioxide (TiO 2 ) structure with a moderate efficiency of 3.8 percent, perovskite materials device efficiency has 24.2 percent or surpassed this percentage, with an overall average of 24 percent certified by the Fraunhofer Institute for solar energy system [6]. Moreover, novel methodologies and technologies were used to obtain these exceptional results [7,8].…”

Section: Introductionmentioning

confidence: 99%

Lithium-based perovskites materials for photovoltaic solar cell and protective rays window applications: a first-principle calculations

et al. 2023

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Perovskites are the key enabler materials for the solar cell applications in the achievement of high performance and low production costs. In this article, the structural, mechanical, electronic, and optical properties of rubidium-based cubic nature perovskite LiHfO3 and LiZnO3 are investigated. These properties are investigated using density-functional theory with the aid of CASTEP software by introducing ultrasoft pseudo-potential plane-wave (USPPPW) and GG-approximation-PB-Ernzerhof exchange–correlation functionals. It is investigated that the proposed compounds exhibit stable cubic phase and meet the criteria of mechanical stability by the estimated elastic properties. Also, according to Pugh's criterion, it is noted that LiHfO3 is ductile and LiZnO3 is brittle. Furthermore, the electronic band structure investigation of LiHfO3 and LiZnO3 shows that they have indirect bandgap (BG). Moreover, the BG analysis of the proposed materials shows that these are easily accessible. Also, the results for partial density of states (DOS) and total DOS confirm the degree of a localized electron in the distinct band. In addition, the optical transitions in the compounds are examined by fitting the damping ratio for the notional dielectric functions scaling to the appropriate peaks. At absolute zero temperature, the materials are observed as semiconductors. Therefore, it is evident from the analysis that the proposed compounds are excellent candidates for solar cells and protective rays applications.

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Phase transformations in an ultralight BCC Mg alloy during anisothermal ageing

Cited by 140 publications

References 77 publications

Improvement Mechanism of Thermal Conductivity in T6/T7‐Treated Al–Si–Mg Cast Alloy: Experimental Studies and Density Functional Theory Calculations

Improvement Mechanism of Thermal Conductivity in T6/T7‐Treated Al–Si–Mg Cast Alloy: Experimental Studies and Density Functional Theory Calculations

Progress of layered double hydroxide-based materials for supercapacitors

Lithium-based perovskites materials for photovoltaic solar cell and protective rays window applications: a first-principle calculations

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