Results 141 to 150 of about 1,799,085 (182)

Mechanical properties of half-Heusler alloys

Acta Materialia, 2016
Abstract As half-Heusler compounds are promising candidates for environmentally friendly and low-cost thermoelectric materials, not only a high figure of merit and efficiency are necessary but also detailed knowledge of mechanical properties and thermal expansion is compulsory.
Rogl, G., Grytsiv, A., Gürth, Matthias, Tavassoli, A., Ebner, C., Wuenschek, A., Puchegger, S., Soprunyuk, V., Schranz, W., Bauer, E., Mueller, H., Zehetbauer, M., Rogl, P.   +12 more
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Vibrational Entropy Stabilizes Distorted Half-Heusler Structures

Chemistry of Materials, 2020
First-principles methods have been extensively used for prediction of half-Heusler (HH) phases for a wide range of functional properties.
Shuping Guo, Shashwat Anand, Yongsheng Zhang, G. Jeffrey Snyder   +3 more
openaire   +1 more source

NMR properties of half‐Heusler CoVSb

physica status solidi c, 2006
The complex NMR properties of CoVSb are reported. On the basis of band structure calculations the compound is predicted to be a half metallic ferromagnet but magnetisation measurements suggest that the compound is a weak ferromagnet. In zero applied field at 4.2 K, three spin echo signals have been observed with peak frequencies of 30, 63 and 82 MHz ...
H. Nishihara, T. Kanomata, Y. Furutani, T. Igarashi, K. Koyama, T. Goto   +5 more
openaire   +1 more source

Reduced Lattice Thermal Conductivity for Half-Heusler ZrNiSn through Cryogenic Mechanical Alloying.

ACS Applied Materials and Interfaces, 2021
The ZrNiSn-based half-Heusler compounds are promising for thermoelectric applications in the mid-to-high temperature range. However, their thermoelectric performance was greatly limited due to the remaining high thermal conductivity, especially the ...
A. Bahrami, Pingjun Ying, U. Wolff, N. P. Rodríguez, G. Schierning, K. Nielsch, R. He   +6 more
semanticscholar   +1 more source

Explaining the electronic band structure of half-Heusler thermoelectric semiconductors for engineering high valley degeneracy

MRS bulletin, 2022
Half-Heusler compounds are attractive candidates for thermoelectric applications because they are inexpensive and have high thermal and mechanical stability. Band engineering to promote electronic structures with high valley degeneracy, $${N}_{V}$$ N V ,
M. Brod, Shuping Guo, Yongsheng Zhang, G. J. Snyder   +3 more
semanticscholar   +1 more source

Multiscale Phonon Scattering for Ultra‐Low Thermal Conductivity in Co‐Doped ZrCoBi Half‐Heusler

Advanced Functional Materials
ZrCoBi‐based half‐Heuslers have great potential in thermoelectric power generation due to their high performance in both n‐ and p‐type constituents. In this work, Te and Ni is adopted as an n‐type co‐dopant to increase the carrier concentration and lower
X. Bao, Kejia Liu, Wenhua Xue, Honghao Yao, Xiaojing Ma, Xiaofang Li, Sheng Ye, Feng Cao, Jun Mao, Qian Zhang   +9 more
semanticscholar   +1 more source

Half‐Heusler Thermoelectric Module with High Conversion Efficiency and High Power Density

Advanced Energy Materials, 2020
Half‐Heusler (HH) compounds have shown great potential in waste heat recovery. Among them, p‐type NbFeSb and n‐type ZrNiSn based alloys have exhibited the best thermoelectric (TE) performance.
Junjie Yu, Yunfei Xing, Chaoliang Hu, Zhijie Huang, Q. Qiu, Chao Wang, K. Xia, Zhenyi Wang, S. Bai, Xinbing Zhao, Lidong Chen, T. Zhu   +11 more
semanticscholar   +1 more source

Half-Heusler thermoelectrics: a complex class of materials

Journal of Physics: Condensed Matter, 2014
Half-Heusler thermoelectrics first attracted interest in the late-1990s and are currently undergoing a renaissance. This has been driven by improved synthesis, processing and characterisation methods, leading to increases in the thermoelectric figure of merit and the observation of novel phenomena such as carrier filtering in nanocomposite samples. The
Jan-Willem G, Bos, Ruth A, Downie
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Ab initio investigation on Half-Heusler CoTiSi

Materials Today: Proceedings, 2020
Abstract We report band structural calculations on half-Heusler alloy CoTiSi using Korringa–Kohn–Rostoker method applied for various formalism of potential. Murnaghan equation of state is used to minimize ground state total energy and then equilibrium lattice parameter is estimated. From density of state (DOS), it is seen that the Fermi energy is not
Shikha Singh, Himanshu Pandey
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Recent progress in half-Heusler thermoelectric materials

Materials Research Bulletin, 2016
Abstract Half-Heusler (HH) thermoelectric (TE) materials have been attracting extensive research interest over the last two decades, owing to their thermal stability, mechanical strength, and moderate ZT . This material system are potential candidates for medium to high temperature applications, which is close to the temperature range of most ...
Lihong Huang, Qinyong Zhang, Bo Yuan, Xiang Lai, Xiao Yan, Zhifeng Ren   +5 more
openaire   +1 more source