Synthesis, microstructure, and thermoelectric properties of Sb-Based high entropy alloys

Rahman, Jamil Ur; Carvalho, Patrícia Almeida; Soltani, Nayereh; Schrade, Matthias; Gunnæs, Anette Eleonora; Finstad, Terje G.

doi:10.1016/j.intermet.2022.107495

Cited by 9 publications

(2 citation statements)

References 62 publications

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“…Rahman et al have investigated the TE properties of a novel class of Sb-based HEAs. 176 These HEAs exhibit a noteworthy relationship between their electrical properties and the VEC of the system. By changing the VEC from 18.72 to 17 (Fig.…”

Section: Overview Of High-entropy Thermoelectric Materialsmentioning

confidence: 99%

High-entropy materials for thermoelectric applications: towards performance and reliability

Oueldna,

Sabi,

Aziam

et al. 2024

Mater. Horiz.

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Section: Overview Of High-entropy Thermoelectric Materialsmentioning

confidence: 99%

High-entropy materials for thermoelectric applications: towards performance and reliability

Oueldna,

Sabi,

Aziam

et al. 2024

Mater. Horiz.

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“…Si, Nb, and Cr elements have the potential to enhance the coating's high-temperature properties on a Ti6Al4V base. High-purity raw materials are required for HEAs, and material cost and availability must be considered [7][8][9][10] . Coating thickness and structure significantly impact performance, and parameters such as grain size and lattice orientation must be controlled during preparation [11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Preparation and investigation of high-temperature oxidation resistance of TiCrAlNbSi alloy coating on Ti-6Al-4V substrate

WANG,

LIU,

LIN

et al. 2023

Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023)

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TiCrAlNbSi alloy coating is a high-temperature corrosion-resistant material. This study investigates the method of preparing high-entropy TiCrAlNbSi alloy coating on Ti6Al4V substrate and evaluates its high-temperature oxidation performance. The experiment uses an alloy target and Si target magnetron sputtering method to prepare TiCrAlNbSi alloy coating, optimizes sputtering power and other process parameters, and characterizes the structure and high-temperature resistance of the coating. The results show that the coating is dense and uniform with smooth surface, and has the characteristics of high entropy composition. In the high-temperature oxidation test, the coating exhibited good oxidation resistance, and the oxide product was dense and uniform, without obvious peeling and falling off on the surface of the coating. In summary, the method of magnetron sputtering to prepare high-entropy TiCrAlNbSi alloy coating on Ti6Al4V substrate has good high-temperature oxidation performance and has application prospects.

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Nanostructuring of AlSiCrMnFeNiCu High‐Entropy Alloy via Cryomilling: Exploring Structural, Magnetic, and Thermoelectric Properties

Shadangi,

Sherpa,

Jain

et al. 2024

Adv Eng Mater

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Efforts are made to understand the influence of milling intensity on structure, morphology, magnetic and thermoelectric properties of nonequiatomic nanostructured AlSiCrMnFeNiCu high‐entropy alloy (HEA) powders prepared by cryomilling. These powders are cryomilled with different ball‐to‐powder ratios (BPR) and present a dual‐phase structure containing a major B2‐type and a minor Cr5Si3‐type phase. An increase in BPR enhances the refinement of crystallite size, grain size, and particle size accompanied by a decrease in the phase fraction of the minor Cr5Si3‐type phase. Magnetic measurements revealed that at room temperature, sufficient increase in BPR leads to a transition from multi‐domain behavior to single‐domain behavior which leads to enhancement in soft magnetic properties. Thermal measurements show the presence of different magnetic phase transitions which vary with an increase in BPR. A change of charge carrier type from p to n‐type was observed as the grain size is reduced. The figure of merit decreases with the decrease in grain size from 2 × 10–5 for as‐cast powders and is lowest for the smallest grain‐sized sample due to a decrease in electrical conductivity. This study shows the possibility of exploring nonequiatomic low‐density HEAs whose functional properties can be tailored, offering flexibility in material design for specific applications.

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Synthesis, microstructure, and thermoelectric properties of Sb-Based high entropy alloys

Cited by 9 publications

References 62 publications

High-entropy materials for thermoelectric applications: towards performance and reliability

High-entropy materials for thermoelectric applications: towards performance and reliability

Preparation and investigation of high-temperature oxidation resistance of TiCrAlNbSi alloy coating on Ti-6Al-4V substrate

Nanostructuring of AlSiCrMnFeNiCu High‐Entropy Alloy via Cryomilling: Exploring Structural, Magnetic, and Thermoelectric Properties

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