Brazing of SiC ceramic to Al0.3CoCrFeNi high entropy alloy by graphene nanoplates reinforced AgCuTi composite fillers

Song, Xiaoguo; Sun, Jie; Wang, Z.H.; Hu, Shengpeng; Lin, Danyang; Chen, N.B.; Liu, D.; Long, Weimin

doi:10.1016/j.ceramint.2023.03.049

Cited by 13 publications

(1 citation statement)

References 32 publications

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“…The addition of only 0.3 wt% graphene nanoplates and the active element Ti impeded heavy diffusion towards SiC, which would have formed detrimental brittle compounds. TiC reinforcements helped refine the microstructure, relieve residual stress, and achieve shear strength of 36.7 MPa [78].…”

Section: Brazingmentioning

confidence: 99%

Novel Frontiers in High-Entropy Alloys

Bridges,

Fieser,

Santiago

et al. 2023

Metals

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There is little doubt that there is significant potential for high-entropy alloys (HEAs) in cryogenic and aerospace applications. However, given the immense design space for HEAs, there is much more to be explored. This review will focus on four areas of application for HEAs that receive less attention. These focus areas include joining technologies, HEA nanomaterial synthesis, catalysis, and marine applications. The performance of HEAs as a filler metal for welding and brazing as well as their performance as a welded/brazed base metal will be discussed. Various methods for synthesizing HEA nanomaterials are reviewed with specifically highlighted applications in catalysis and energy storage. HEA catalysts, in particular, will be discussed in detail regarding their effectiveness, selectiveness, and stability. Marine applications are explored given the inherent corrosion resistance of HEAs as well as superior antifouling properties that make HEAs an intriguing marine-ready material.

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Section: Brazingmentioning

confidence: 99%

Novel Frontiers in High-Entropy Alloys

Bridges,

Fieser,

Santiago

et al. 2023

Metals

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Joint Microstructure and Performance of Brazing Si₃N₄‐MoSi₂ Composites to Nb with AgCuTi and AgCuTi+MoSi_2p Active Fillers

Fang,

Wang,

Shan

et al. 2024

Adv Eng Mater

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MoSi2 particle (MoSi2p), the component of Si3N4‐MoSi2 composites, is added into an AgCuTi filler to strengthen the interface bonding without bringing new elements into the Nb/Si3N4‐MoSi2 brazed joint. In this new brazing system, microstructure evolution and strength of Nb/Si3N4‐MoSi2 joints as a function of brazing temperature and holding time, as well as MoSi2p content, are investigated. With an AgCuTi filler, the reaction of active Ti and Si3N4‐MoSi2 forms a composite layer consisting of Mo5Si3, TiN, and Ti5Si3 at the interface. The extensive growth of the layer is observed from 1.9 μm at 860 °C to 5.0 μm at 920 °C, and from 1.3 μm for 5 min to 4.6 μm for 20 min as the chemical reactions between Ti and Si3N4‐MoSi2 are more sufficient. Adding 6 wt% MoSi2p to the filler, the joints exhibit a peak shear strength of 154 MPa, an increase of 20% over that of a commercial AgCuTi filler, with the fracture path changing from the Si3N4‐MoSi2 to the brazing seam. The enhancement of the joint is attributed to the reinforcement of the seam by in situ reaction of the dispersed MoSi2p with Ti, refining the microstructure and reducing the thickness of the Mo5Si3+TiN+Ti5Si3 reaction layer.

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Microstructure evolution and mechanical properties of SiC/Mo joint brazed with FeCoCrNi high-entropy alloy filler

Lin,

Chen,

et al. 2024

Ceramics International

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Brazing of SiC ceramic to Al0.3CoCrFeNi high entropy alloy by graphene nanoplates reinforced AgCuTi composite fillers

Cited by 13 publications

References 32 publications

Novel Frontiers in High-Entropy Alloys

Novel Frontiers in High-Entropy Alloys

Joint Microstructure and Performance of Brazing Si₃N₄‐MoSi₂ Composites to Nb with AgCuTi and AgCuTi+MoSi_2p Active Fillers

Microstructure evolution and mechanical properties of SiC/Mo joint brazed with FeCoCrNi high-entropy alloy filler

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Brazing of SiC ceramic to Al0.3CoCrFeNi high entropy alloy by graphene nanoplates reinforced AgCuTi composite fillers

Cited by 13 publications

References 32 publications

Novel Frontiers in High-Entropy Alloys

Novel Frontiers in High-Entropy Alloys

Joint Microstructure and Performance of Brazing Si3N4‐MoSi2 Composites to Nb with AgCuTi and AgCuTi+MoSi2p Active Fillers

Microstructure evolution and mechanical properties of SiC/Mo joint brazed with FeCoCrNi high-entropy alloy filler

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Product

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About

Joint Microstructure and Performance of Brazing Si₃N₄‐MoSi₂ Composites to Nb with AgCuTi and AgCuTi+MoSi_2p Active Fillers