Brazing of porous copper foam/copper with amorphous Cu-9.7Sn-5.7Ni-7.0P (wt%) filler metal: interfacial microstructure and diffusion behavior

Zahri, Nur Amirah Mohd; Yusof, Farazila; Miyashita, Yukio; Ariga, Tadashi; Haseeb, A.S.M.A.; Jamadon, Nashrah Hani; Sukiman, Nazatul Liana

doi:10.1007/s40194-019-00804-2

Cited by 9 publications

(6 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increasing the porosity of PMFSS from 70 to 90% resulted in decreased shear strengths from 7.7 to 0.9 MPa. Zahri et al (2020) studied the interfacial microstructure of Cu and Cu foam brazed joint. A high number of cavities were found in the brazing interface region for the highest pore density Cu foam leading to a low shear strength.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Deformation and Fracture Behavior of Sandwiched Copper Foam Brazed Joint Using Amorphous Copper–Tin–Nickel–Phosphorus Filler

et al. 2021

Self Cite

View full text Add to dashboard Cite

Utilization of open-cell metal foams in functional applications such as in energy absorption, noise absorber, heat insulator, and lightweight panels is trending in many industrial applications. The development of reliable joining technologies for sandwiched metal foams is crucial for thermal application and one of the techniques used is brazing process. In the current work, copper foam was sandwiched between a copper plate using amorphous filler of Cu-9.7Sn-5.7Ni-7.0P (Cu: copper, Sn: tin, Ni: nickel, and P: phosphorus) via brazing technique. The shear test was conducted on the brazed joint interface of copper/copper foam, while the compressive test was carried out on the brazed sample. Microstructures of the copper substrate surface obtained from the shear fracture of brazed copper/copper foam show the tear region and cleavage fractures. The stress–strain curve of shear and compressive strength explains the deformation behavior of the brazed sample.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The sample of Cu/filler/Cu foam/filler/Cu was undergone a brazing process at difference brazing temperatures (660C, 680C, 700C, and 720°C). Four different brazing temperature parameters were fixed above the filler liquidus temperature of 643°C (Zahri et al, 2020). The argon gas was used to avoid oxidation during brazing at a high temperature.…”

Section: Methodsmentioning

confidence: 99%

Deformation and Fracture Behavior of Sandwiched Copper Foam Brazed Joint Using Amorphous Copper–Tin–Nickel–Phosphorus Filler

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Filler foil of copper‐tin (9.7 %)‐nickel (5.7 %)‐phosphorus (7.0 %) (Metglas® Inc., USA) with dimension 10 mm×10 mm×40 μm was used for brazing copper and porous copper foam. The details study on the filler foil has been investigated in the previous work [18]. The copper/filler/porous copper foam/filler/copper specimen was arranged in a sandwich configuration as a protective structure, Figure 1a.…”

Section: Experimental Workmentioning

confidence: 99%

Interfacial microstructure and strength of brazed copper/porous copper foam towards the effect of porous copper foam pore density and brazing holding time

Zahri

Shafee

Yusof

et al. 2021

Materialwissenschaft Werkst

View full text Add to dashboard Cite

The porous copper foam was sandwiched between two coppers plate and then brazed using copper‐tin (9.7 %)‐nickel (5.7 %)‐phosphorus (7 %) filler foil. Brazing process was conducted to joint copper/porous copper foam by evaluating the effect of porous copper foam pore densities [pore per inch (PPI)] and brazing holding times. The brazed joint interface of copper and porous copper foam was characterised using Field emission scanning electron microscopy and Energy‐dispersive x‐ray spectroscopy for the microstructure and elemental composition analysis, respectively. X‐ray diffraction analysis was carried out on the shear fractured surfaces of brazed copper and porous copper foam for phase determination. The results exhibited distinct phases of copper (Cu), copper phosphide (Cu3P), nickel phosphide (Ni3P), and copper compound with tin (6 : 5) (Cu6Sn5). The filler layer was formed as an island‐shaped that consists of copper phosphide and nickel phosphide. Prolong brazing holding time causes a thinner filler layer in brazing seam. While the non‐uniform thickness of the filler layer was observed at different pore densities of porous copper foam. The shear strength of brazed copper/porous copper foam 15 PPI with a 10 min brazing holding time yield a maximum shear strength of 2.9 MPa.

show abstract

“…It is extensively used in electrical industry. Various studies and research were conducted to improve the physical and mechanical properties of Cu mainly on the nature of its thermal and electrical conductivity, in the area of Cu production processes or the preparation of alloyed Cu [1][2][3]. The graphene-copper alloys have become a hotpot where it has attracted many researchers globally to study on the mechanical and physical properties of the compositions [4,5].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Graphene Addition on the Microstructure and Properties of Graphene/Copper Composites for Sustainable Energy Materials

Jamadon,

Rasid,

Ahmad

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

Graphene is a single thin layer (mono layer) of a hexagon-bound carbon atom and is an allotropic carbon in the form of a hybrid atomic plane, with a molecular bond length of 0.142 nm. Graphene is the thinnest and lightest material with 0.77 mg square meters, which exhibited excellent electricity and heat conductor. However, the perfect uniform microstructure, strength and optimum thermal properties of copper-graphene composites cannot be achieved because the amount of graphene does not reach the optimum level. In order to solve this problem, copper-graphene composites were produced by metal injection molding method (MIM) with various percentage of graphene, specifically 0.5%, 1.0% and 1.5% in the composite, to compare the physical and mechanical properties of these samples. MIM process involves the preparation of feed materials, pre-mixing process, mixing process, mold injection process, binding process and sintering processes. Feeding materials were used are copper and graphene, which have the powder loading of 62% with a mix of binder comprising 73% polyethylene glycol (PEG), 25% polymethyl methacrylate (PMMA), and 2% stearic acid (SA). Densification and tensile test were conducted to determine the mechanical properties. Scanning electron microstructure (SEM) was performed to obtain the microstructure of the composites. From the research, the result revealed that the 0.5% graphene content had the optimum parameter, which the hardness and tensile stress values were at 94.2 HRL and 205.22 MPa.

show abstract

Brazing of porous copper foam/copper with amorphous Cu-9.7Sn-5.7Ni-7.0P (wt%) filler metal: interfacial microstructure and diffusion behavior

Cited by 9 publications

References 18 publications

Deformation and Fracture Behavior of Sandwiched Copper Foam Brazed Joint Using Amorphous Copper–Tin–Nickel–Phosphorus Filler

Deformation and Fracture Behavior of Sandwiched Copper Foam Brazed Joint Using Amorphous Copper–Tin–Nickel–Phosphorus Filler

Interfacial microstructure and strength of brazed copper/porous copper foam towards the effect of porous copper foam pore density and brazing holding time

The Effect of Graphene Addition on the Microstructure and Properties of Graphene/Copper Composites for Sustainable Energy Materials

Contact Info

Product

Resources

About