Highly loaded magnetocaloric composites by La(Fe,Si)13H powder dedicated to extrusion-based additive manufacturing applications

N'dri, K.D.; Charpentier, N.; Hirsinger, L.; Gilbin, Alexandre; Barrière, Thierry

doi:10.1016/j.powtec.2023.118616

Cited by 6 publications

(1 citation statement)

References 62 publications

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“…Besides providing the material with enhanced properties due to the possibility to achieve fine grain size, the primary advantage of powder metallurgy is that powders of materials with (way) different properties, e.g. different melting temperatures can be mixed together without the need to adapt the production technology [1]. To (further) enhance the structures of the prepared workpieces, powder-based techniques can be combined with deformation processing [2].…”

Section: Introductionmentioning

confidence: 99%

effect of oxidE dispersion on ELECTRic CONDUCTIVITY of rotary swaged powder-based copper composites

KUNČICKÁ,

BENČ,

KAČOR

et al. 2023

METAL Conference Proeedings

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Copper is a very popular electro-conductive material, however, the mechanical properties of pure Cu are low. They can be typically improved by (micro)alloying, or via structure modifications introduced by optimized deformation and thermomechanical treatments. Designing a Cu-based composite, possibly strengthened by a dispersion of fine oxides, is another way how to favourably improve the strength properties of Cu. In this study, we performed mechanical alloying of a Cu powder with a powder of Al2O3 oxide, which is known to have strengthening effects on metallic materials. After mixing, we sealed the powder mixture into evacuated tubular Cu containers (i.e. cans). As for the consolidation procedure, we applied direct consolidation of the canned powders via the intensive plastic deformation method of rotary swaging, performed under warm conditions. Subsequently, we subjected the swaged conductors to measurements of electric conductivity and detailed structure observations. The results revealed that the applied swaging ratio was sufficient to fully consolidate the canned powders as the final conductor was unrecognizable from a cast alloy from the viewpoints of visual and structure assessment. In other words, the structure did not exhibit any voids or remnants of unconsolidated powder particles. The observed fine grains with homogeneous dispersion of Al2O3 oxide particles provided improvement of the mechanical properties, as proven by microhardness measurements. Moreover, the electric properties remained favourable.

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Section: Introductionmentioning

confidence: 99%

effect of oxidE dispersion on ELECTRic CONDUCTIVITY of rotary swaged powder-based copper composites

KUNČICKÁ,

BENČ,

KAČOR

et al. 2023

METAL Conference Proeedings

View full text Add to dashboard Cite

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Advanced Magnetocaloric Materials for Energy Conversion: Recent Progress, Opportunities, and Perspective

Zhang,

Miao,

van Dijk

et al. 2024

Advanced Energy Materials

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Solid‐state caloric effects as intrinsic thermal responses to different physical external stimuli (magnetic‐, uniaxial stress‐, pressure‐, and electric‐fields) can achieve a higher energy efficiency compared with traditional gas compression techniques. Among these effects, magnetocaloric energy conversion is regarded as the best available alternative and has been exploited extensively for promising application scenarios in the last decades. This review systematically introduces the magnetocaloric effect and its applications, and summarizes the corresponding representative magnetocaloric materials, as well as important progress in recent years. Specifically, the review focuses on some key understandings of the magnetocaloric effect by utilizing state‐of‐the‐art technical tools such as synchrotron X‐ray, neutron scattering, muon spin spectroscopy, positron annihilation spectroscopy, high magnetic fields, etc., and highlights their importance toward advanced materials design and development. An overview of the basic principles and applications of these advanced techniques on magnetocaloric materials is provided. Finally, the challenges and perspectives on further developments in this field are discussed. Further in‐depth understanding and manufacturing technology advancement combined with fast‐developed artificial intelligence and machine learning are expected to advance the magnetocaloric energy conversion technology closer to real applications.

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Additive manufacturing for 3D microchannel structure using La(FexSi1-x)13 magnetic refrigerant via laser powder bed fusion

Imaizumi,

Fujita,

Suzuki

et al. 2024

Additive Manufacturing

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Highly loaded magnetocaloric composites by La(Fe,Si)13H powder dedicated to extrusion-based additive manufacturing applications

Cited by 6 publications

References 62 publications

effect of oxidE dispersion on ELECTRic CONDUCTIVITY of rotary swaged powder-based copper composites

effect of oxidE dispersion on ELECTRic CONDUCTIVITY of rotary swaged powder-based copper composites

Advanced Magnetocaloric Materials for Energy Conversion: Recent Progress, Opportunities, and Perspective

Additive manufacturing for 3D microchannel structure using La(FexSi1-x)13 magnetic refrigerant via laser powder bed fusion

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