Microwave sintering of W/Cu functionally graded materials

Liu, R.; Hao, Ting; Wang, K.; Zhang, T.; Wang, X.P.; Liu, C.S.; Fang, Q.F.

doi:10.1016/j.jnucmat.2011.11.013

Cited by 42 publications

(10 citation statements)

References 19 publications

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“…Different fabrication techniques have been employed to produce W-Cu FGMs. [25][26][27][28][29][30][31] The mechanical and thermal behaviour of W-Cu FGMs has been characterized in some recent papers. [32][33][34][35][36][37] The prediction of fracture in notched W-Cu FGM specimens is an important issue due to its applications.…”

mentioning

confidence: 99%

Retracted: Fracture investigation of U‐notch made of tungsten–copper functionally graded materials by means of strain energy density

Mohammadi

Salavati

Alizadeh

et al. 2017

Fatigue Fract Eng Mat Struct

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The averaged strain energy density over a well‐defined control volume was employed to assess the fracture of U‐notched specimens made of tungsten–copper functionally graded materials under prevalent mode II loading. The boundary of control volume was evaluated by using a numerical method. Power law function was employed to describe the mechanical properties (elasticity modulus, Poisson's ratio, fracture toughness and ultimate tensile stress) through the specimen width. The effect of notch tip radius and notch depth on notch stress intensity factors and mode mixity parameter χ were assessed. In addition, a comparison based on fracture load between functionally graded and homogeneous W–Cu was made. Furthermore, in this research, it was shown that the mean value of the strain energy density over the control volume can be accurately determined using coarse meshes for functionally graded materials.

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confidence: 99%

Retracted: Fracture investigation of U‐notch made of tungsten–copper functionally graded materials by means of strain energy density

Mohammadi

Salavati

Alizadeh

et al. 2017

Fatigue Fract Eng Mat Struct

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“…Furthermore, a strain control and deformation speed of 0.05 mm/min was applied. Thermal conductivity test was performed using laser flash thermal analyzer (LFA 457, Germany) in the range from 300 to 1100 K. The thermal conductivity (k) was calculated from the thermal diffusivity (a), density (q) and specific heat (Cp) by k = aCpq [18]. The specific heat (Cp) was determined by theoretical rule of mixtures according to the following formula: 3 and V W are the volume fractions of Sc 2 O 3 and W, respectively, and C PSc 2 O 3 and C PW are the specific heats of Sc 2 O 3 and W, respectively.…”

Section: Characterizationmentioning

confidence: 99%

Effect of Sc2O3 particles on the microstructure and properties of tungsten alloy prepared by spark plasma sintering

Chen

Luo

et al. 2015

Journal of Nuclear Materials

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“…Among which, Cu is considered to be one of the most dominant nonferrous material that find extensive applications in cooling system applications, electrical contacts, heat sink applications, antifriction, antiwear and semiconductor devices [2]. The addition of single reinforcement especially Cu-W composite materials finds application in welding electrodes, high voltage electric contacts, and microelectronic materials [3][4][5][6]. Similar kinds of other popular reinforcing materials such as B 4 C, Ti & TiO 2 , WC, TiC, [7][8][9][10][11] etc, promised to increase the thermal conductivity, electrical conductivity, hardness, and wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Investigation and characterization of Copper-Fly ash-Tungsten hybrid composites synthesized through P/M process

Rajan

Balaji

Raghav

et al. 2020

Mater. Res. Express

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This research paper describes the enhancement of mechanical, wear and corrosion behaviour of the Copper (Cu) matrix composite by reinforcing Fly ash (FA) and Tungsten (W). The main objective of this study was to reduce the weight and cost of the hybrid composites. The weight percentage of low density material (FA) was kept constant at 6% and samples were prepared by the addition of W in weight percentages of 3, 6 and 9 in the Cu matrix. The characterization of the hybrid composites was studied using a Scanning Electron Microscope (SEM) and Energy-dispersive spectroscopy (EDS). The micrographs revealed the uniform distribution of W and FA in the Cu matrix. From the mechanical characterization, it was identified that there is an increase in microhardness and compressive strength with the addition of W particles. It can be understood that the W particles occupy substitutional type reinforcement and FA particles occupy interstitial type reinforcement in the Cu matrix. The Wear behavior and its mechanism were studied using worn surface SEM micrographs. It was observed that the lowest specific wear rate was recorded for the hybrid composition of Cu-6FA-6W. Electrochemical polarization test and Electrochemical Impedance Spectroscopy (EIS) study revealed that Cu-6FA-9W shows higher corrosion resistance in both 1 N HCl (256.593×10 −4 Ω cm 2 ) and seawater media (219.855×10 −4 Ω cm 2 ) than pure Cu.

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Microwave sintering of W/Cu functionally graded materials

Cited by 42 publications

References 19 publications

Retracted: Fracture investigation of U‐notch made of tungsten–copper functionally graded materials by means of strain energy density

Retracted: Fracture investigation of U‐notch made of tungsten–copper functionally graded materials by means of strain energy density

Effect of Sc2O3 particles on the microstructure and properties of tungsten alloy prepared by spark plasma sintering

Investigation and characterization of Copper-Fly ash-Tungsten hybrid composites synthesized through P/M process

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