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Phase formation beh...
Phase formation behavior and hydrogen sorption characteristics of TiFe0.8Mn0.2 powders prepared by gas atomization
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- Lee, Da Hye (författare)
- Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.;Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea.
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- Kwon, Hong Gi (författare)
- Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.
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- Park, Ki Beom (författare)
- Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.;Korea Zinc Co, Res & Dev Team, Ulsan 44997, South Korea.
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- Im, Hyeon-Tae (författare)
- Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.
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- Kwak, Ryun Ho (författare)
- Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.;Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea.
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- Sohn, Seok Su (författare)
- Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea.
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- Park, Hyung-Ki (författare)
- Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.
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- Fadonougbo, Julien O. (författare)
- Uppsala universitet,Institutionen för kemi - Ångström,Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea.
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Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea;Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea. Korea Inst Ind Technol, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea. (creator_code:org_t)
- Elsevier BV, 2023
- 2023
- Engelska.
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Ingår i: International journal of hydrogen energy. - : Elsevier BV. - 0360-3199 .- 1879-3487. ; 48:71, s. 27697-27709
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this article we have investigated the phase formation behavior and hydrogen storage characteristics of TiFe0.8Mn0.2 samples produced by electrode induction melting gas at-omization (EIGA) as well as conventional vacuum arc-melting (VAM). TiFe (46Ti-46Fe-8Mn (wt%) with cubic, CsCl-type structure) and C14 Laves (37Ti-51Fe-12Mn (wt%) with hex-agonal, MgZn2-type structure) phases were detected in both atomized powders and crushed ingots, the latter possessing a lower fraction of Laves phase. Microstructural characterization included electron probe micro-analysis (EPMA) and transmission electron microscopy (TEM), which evidenced the existence of a non-equilibrium Ti2Fe phase in the atomized powders. The formation of this additional secondary phase was attributed to the rapid cooling rate during powder manufacturing, based on earlier findings and phase formation thermodynamic calculations combined with Scheil solidification simulations. In addition, kinetics and pressure-composition isotherms (PCIs) were acquired to determine both absorption and desorption enthalpy/entropy, as well as to study the influence of the synthesis route (and hence the resulting microstructure) on kinetics, thermodynamics and reaction mechanisms of the TiFe0.8Mn0.2 alloy. & COPY; 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Nyckelord
- TiFe-Based hydrogen storage
- materials
- Gas atomization
- Scheil solidification
- Microstructural analysis
- Pressure-composition isotherms
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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