Three dimensional forming of compressed open-cell metallic foams at elevated temperatures

Mansoor, Bilal; Nassar, Hani; Shunmugasamy, Vasanth Chakravarthy; Khraisheh, Marwan

doi:10.1016/j.msea.2015.01.071

Cited by 16 publications

(4 citation statements)

References 33 publications

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“…During cyclic bending deformation, the wrinkled graphene underwent repeated tension and compression, resulting in drastic interface friction-slipping and high energy dissipation. Moreover, the high intrinsic thermal conductivity of graphene is also helpful to rapidly transport and dissipate heat . Therefore, the graphene/nickel hybrid foams exhibited much higher energy dissipation and better damping properties than nickel foams, which is mainly attributed to the rich interfaces, drastic interface friction-slipping, and high thermal conductivity of graphene.…”

Section: Results and Discussionmentioning

confidence: 99%

Improved Damping and High Strength of Graphene-Coated Nickel Hybrid Foams

Wang

Zhang

et al. 2019

ACS Appl. Mater. Interfaces

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Direct growth of graphene on the metal surface opens a door for obtaining high-performance composites in a simple way. In order to obtain both high strength and enhanced damping property of the porous metal, we prepared graphene-coated nickel hybrid foams by chemical vapor deposition technique and investigated the static and dynamic mechanical properties using a dynamic mechanical analyzer and vibration testing systems in detail. We found that the presence of graphene layers could greatly improve both mechanical strength and damping properties of nickel foams. The graphene-coated nickel hybrid foams exhibited high yield strength, compressive modulus, and damping ratio, increased by 46, 22, and 53% in comparison with those of nickel foams. Such significant graphene reinforcement in mechanical and damping properties is mainly attributed to the strong interfacial bonding, remarkable confinement effect, and rich interfaces in hybrid foams. By virtue of its high mechanical strength and enhanced damping properties, the graphene/nickel hybrid foams have great potential to be used as multifunctional composite materials in many fields.

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Section: Results and Discussionmentioning

confidence: 99%

Improved Damping and High Strength of Graphene-Coated Nickel Hybrid Foams

Wang

Zhang

et al. 2019

ACS Appl. Mater. Interfaces

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“…[27][28] The porous structure of the metal foam layer can absorb fracture energy of the joint. 29,30 Due to the large elastic moduli and suitable CTE, these interlayers can transfer thermal stress from ceramic to the middle layer, which can inhibit the generation of cracks inside the ceramic. 31 Minli 32 proved that the addition of Cu foam+AgCu foil was beneficial for relief of the residual stress of Si 3 N 4 ceramic and Ti alloys.…”

Section: Introductionmentioning

confidence: 99%

“…The porous structure of the metal foam layer can absorb fracture energy of the joint 29,30 . Due to the large elastic moduli and suitable CTE, these interlayers can transfer thermal stress from ceramic to the middle layer, which can inhibit the generation of cracks inside the ceramic 31 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni foam on the microstructure and properties of AlN ceramic/Cu brazed joint

Guo

Ding

et al. 2023

Int J Applied Ceramic Tech

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Aluminum nitride (AlN) ceramics and oxygen‐free Cu were brazed with multilayer filler consisted of Ag‐Cu‐Ti +Ni foam. The microstructure and forming principle of AlN/Cu joints were studied and the influence of Ni foam on the joints was focused. The result shows that the composition of AlN/Cu joint was AlN/TiN/Ni3Ti+Cu(s,s)+CuTi+Ni foam+Ag(s,s)/Cu. The joint strength was only 66.7 ± 3.7MPa with pure Ag‐Cu‐Ti solder and the fracture occurred inside AlN ceramics due to the residual stress. The foam nickel reacted with Ag‐Cu‐Ti filler metal to form Ni3Ti during brazing process. Ni foam still retained the basic skeleton structure during brazing, and the mechanical capacity of AlN/Cu joint was enhanced significantly. The maximum shear strength of the brazed joint can reach 89.6 ± 4.5 MPa with .1 mm Ni foam, and the fracture position changed to the brazing filler. The result shows that nickel foam can reduce the residual thermal stress, and the mechanical properties of AlN/Cu joints were improved.

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“…They also usually were chosen as the light and stiff fillers in structural components. 13,14) Simulation and experimental results have shown that excellent properties of aluminum foams are positive in correlation with the pore structure. 11,12) To acquire the pore structure, the various methods of manufacturing aluminum foams include infiltration of liquid metal, liquid processes, and powder metallurgy have been given extensive attention.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Pore Walls Microstructure in Open Cell Aluminum Foams Utilizing Self-Propagating Reaction

Feng

Liao

et al. 2019

Mater. Trans.

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The Al(H 2 PO 4 ) 3 doped with thermite as the space holder is prepared for aluminum foams during powder metallurgy process. The pore walls of aluminum foams are covered with the in-situ synthesized residual phosphates produced from Al(H 2 PO 4 ) 3 after the self-propagating reaction in space holder. Influences of the thermite content dispersed in space holder on both phase transformation and the coating layers microstructure of pore walls are investigated. The results suggest that the added thermite could optimize the microstructure of pore walls coating layers even if the space holder sintered at the lower furnace temperature, due to the released larger energy from thermite reaction would increase the local reaction temperature for Al(H 2 PO 4 ) 3 . The melted loose coating layers of the pore walls may shrink and lead to the higher porosity of aluminum foams can be obtained.

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Three dimensional forming of compressed open-cell metallic foams at elevated temperatures

Cited by 16 publications

References 33 publications

Improved Damping and High Strength of Graphene-Coated Nickel Hybrid Foams

Improved Damping and High Strength of Graphene-Coated Nickel Hybrid Foams

Effect of Ni foam on the microstructure and properties of AlN ceramic/Cu brazed joint

Optimization of Pore Walls Microstructure in Open Cell Aluminum Foams Utilizing Self-Propagating Reaction

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