Preparation of Cu–Al2O3 bulk nano-composites by combining Cu–Al alloy sheets internal oxidation with hot extrusion

Ren, Fang; Ai-juan, Zhi; Dan-wen, Zhang; Tian, Baohong; Volinsky, Alex A.; Shen, Xiaoni

doi:10.1016/j.jallcom.2015.02.057

Cited by 35 publications

(11 citation statements)

References 11 publications

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“…As shown in Table 1, the conductivity of the S1 sample (90% IACS) is greater than that of the S2 sample (87.5% IACS). In previous studies, it was reported that the electron scattering effect in the Cu-0.4 wt.% Al 2 O 3 composite material mainly comes from phonons, grain boundaries and Al 2 O 3 particles ( Ref 18,19). Since the grain size of sample S1 is smaller than that of the S2, S1 sample has more grain boundaries and has a stronger electron scattering effect.…”

Section: Properties Of the Cu-04 Wt% Al 2 O 3 Compositesmentioning

confidence: 95%

“…The steps of internal oxidation to prepare copper-based composites are as follows: original copper alloy powder fi mixing of original copper alloy powder and oxidant powder fi internal oxidation fi deoxidation fi sintering fi deformation processing ( Ref 19). Recently, a few publications have been reported the Cu-Al 2 O 3 composites fabricated by internal oxidation (Ref 16,17,19). Lee et al reported that the Cu-0.94 wt.% Al 2 O 3 composites were successfully fabricated by internal oxidation and hot extrusion.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Properties of Cu-0.4 wt.% Al2O3 Composites Fabricated by Hot Extrusion and Cold Drawing

Feng

Zhang

Feng

et al. 2021

J. of Materi Eng and Perform

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In the present study, Cu-0.4 wt.% Al 2 O 3 composites were successfully prepared by internal oxidation and hot extrusion followed by cold drawing. Microstructure, texture, mechanical properties and electrical conductivity of the Cu-0.4 wt.% Al 2 O 3 composites were systematically studied. Our results show that the cold drawn S2 sample contains a much finer grain (about 1 lm) than the extruded S1 sample (about 3 lm). The S1 and S2 samples have a typical double fiber texture, with <100> and <111> parallel to extrusion direction (ED) or drawing direction (DD). The ultimate tensile strength, tensile yield strength and electrical conductivity of S1 sample are 460 MPa, 375 MPa and 90% IACS, respectively. After cold drawing, the S2 sample possesses a higher ultimate tensile strength (560 MPa) and tensile yield strength (520 MPa) than S1 sample, but a slightly lower electrical conductivity (87.5% IACS) than S1 sample. After annealing at 900 °C, the S1 and S2 samples also have a high microhardness of about 125 HV, which indicates that the Cu-0.4 wt.% Al 2 O 3 composites have an excellent thermal stability.

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Section: Properties Of the Cu-04 Wt% Al 2 O 3 Compositesmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Cu-0.4 wt.% Al2O3 Composites Fabricated by Hot Extrusion and Cold Drawing

Feng

Zhang

Feng

et al. 2021

J. of Materi Eng and Perform

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“…Carbides, nitrides, sulfides show significant properties such as high melting point, corrosion resistance, high mechanical strength and high stability. They exhibit applications in refractory ceramics, catalysis, sensing technology, electrochemistry, wastewater management and fuel engine performances [14][15][16][17]. Transition metals (Ni, Cu, Co, Fe, Mn, Cr and Ti) with carbide show improved physiochemical properties due to electron-rich bonding between metals and increase metal-metal (MM) bond spacing.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermally engineered Ni–CuC hybrid nanocomposites: Structural and morphological investigations with potential fuel catalytic applications

Rasheed

Sher

Rasheed

et al. 2021

Materials Chemistry and Physics

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“…Also, the nanoparticle strengthened copper composites have higher thermal stability and high-temperature strength than other copper composites [6,7]. Researchers have studied many types of strengthening particles, including ceramics such as Al 2 O 3 , TiO 2 , and Y 2 O 3 [8–10]; bcc metals such as Cr, W, Nb, and Ta [11–14]. These results prove that the addition of nano-sized particles improves the performance of copper composites.…”

Section: Introductionmentioning

confidence: 99%

W and TiO₂ particles synergistic strengthened Cu matrix nanocomposites by mechano-chemical method

Chen

et al. 2020

Powder Metallurgy

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In this study, a novel W and TiO 2 synergistic strengthened copper matrix nanocomposite was prepared by a powder metallurgy route with a mechano-chemical method and subsequent consolidation. Nano-sized W and TiO 2 particles in the composite powder were fabricated by solid-phase reaction during the mechanical alloying procedure. The average sizes of W and TiO 2 particles were only 51 and 171 nm, far finer than single-phase particle-strengthened composites. It was found that the nanoparticles effectively resisted the grain coarsening in the copper matrix, containing the grains with an average size of 350 nm. The ultimate tensile strength and electrical conductivity of the copper composite are 520 MPa and 74 IACS%, achieve an ideal trade-off between them. The observations suggested that the nanoparticles were highly uniformly dispersed in the copper matrix, and the particle coarsening was restrained as the results of the interaction effects between W and TiO 2 nanoparticles.

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Preparation of Cu–Al2O3 bulk nano-composites by combining Cu–Al alloy sheets internal oxidation with hot extrusion

Cited by 35 publications

References 11 publications

Microstructure and Properties of Cu-0.4 wt.% Al2O3 Composites Fabricated by Hot Extrusion and Cold Drawing

Microstructure and Properties of Cu-0.4 wt.% Al2O3 Composites Fabricated by Hot Extrusion and Cold Drawing

Hydrothermally engineered Ni–CuC hybrid nanocomposites: Structural and morphological investigations with potential fuel catalytic applications

W and TiO₂ particles synergistic strengthened Cu matrix nanocomposites by mechano-chemical method

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Preparation of Cu–Al2O3 bulk nano-composites by combining Cu–Al alloy sheets internal oxidation with hot extrusion

Cited by 35 publications

References 11 publications

Microstructure and Properties of Cu-0.4 wt.% Al2O3 Composites Fabricated by Hot Extrusion and Cold Drawing

Microstructure and Properties of Cu-0.4 wt.% Al2O3 Composites Fabricated by Hot Extrusion and Cold Drawing

Hydrothermally engineered Ni–CuC hybrid nanocomposites: Structural and morphological investigations with potential fuel catalytic applications

W and TiO2 particles synergistic strengthened Cu matrix nanocomposites by mechano-chemical method

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Product

Resources

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W and TiO₂ particles synergistic strengthened Cu matrix nanocomposites by mechano-chemical method