The microstructure and mechanical properties of the B4C/Cu matrix composite fabricated by SPS-HR

Hong sheng Chen; Yu yang Zhang; Hui hui Nie; Jin feng Wang; Wen xian Wang; Jun Zhou; Peng Zhang

doi:10.1080/02670836.2018.1460042

The microstructure and mechanical properties of the B₄C/Cu matrix composite fabricated by SPS-HR

Hong sheng Chen, Yu yang Zhang, Hui hui Nie, Jin feng Wang, Wen xian Wang, Jun Zhou, Peng Zhang

School of Engineering (Behrend)

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Copper matrix composites containing different volume fractions of B₄C particles (0–15%) were first fabricated by spark plasma sintering followed by hot rolling in atmospheric environments, then their microstructures, phase compositions, mechanical properties and sintering mechanism were investigated. It was found that B₄C particles distributed relatively homogeneously in the copper matrix. Reaction products of CuC₈ and B were observed and identified in the composite. Under increasing B₄C particle content, the ultimate tensile, yield strength and elongation to fracture of the composites decreased. Failure mode of composites included: (1) the interfacial debonding and (2) the cleavage fracture of copper. Moreover, micro-discharge between the adjacent particles occurred, and its led to local high temperature at the interface.

Original language	English (US)
Pages (from-to)	1460-1467
Number of pages	8
Journal	Materials Science and Technology (United Kingdom)
Volume	34
Issue number	12
DOIs	https://doi.org/10.1080/02670836.2018.1460042
State	Published - Aug 13 2018

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "The microstructure and mechanical properties of the B4C/Cu matrix composite fabricated by SPS-HR",

abstract = "Copper matrix composites containing different volume fractions of B4C particles (0–15%) were first fabricated by spark plasma sintering followed by hot rolling in atmospheric environments, then their microstructures, phase compositions, mechanical properties and sintering mechanism were investigated. It was found that B4C particles distributed relatively homogeneously in the copper matrix. Reaction products of CuC8 and B were observed and identified in the composite. Under increasing B4C particle content, the ultimate tensile, yield strength and elongation to fracture of the composites decreased. Failure mode of composites included: (1) the interfacial debonding and (2) the cleavage fracture of copper. Moreover, micro-discharge between the adjacent particles occurred, and its led to local high temperature at the interface.",

author = "Chen, {Hong sheng} and Zhang, {Yu yang} and Nie, {Hui hui} and Wang, {Jin feng} and Wang, {Wen xian} and Jun Zhou and Peng Zhang",

note = "Funding Information: This work was supported by National Natural Science Foundation of China [grant number 51775366 and 51505320], which is gratefully acknowledged.",

year = "2018",

month = aug,

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doi = "10.1080/02670836.2018.1460042",

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T1 - The microstructure and mechanical properties of the B4C/Cu matrix composite fabricated by SPS-HR

AU - Chen, Hong sheng

AU - Zhang, Yu yang

AU - Nie, Hui hui

AU - Wang, Jin feng

AU - Wang, Wen xian

AU - Zhou, Jun

AU - Zhang, Peng

N1 - Funding Information: This work was supported by National Natural Science Foundation of China [grant number 51775366 and 51505320], which is gratefully acknowledged.

PY - 2018/8/13

Y1 - 2018/8/13

N2 - Copper matrix composites containing different volume fractions of B4C particles (0–15%) were first fabricated by spark plasma sintering followed by hot rolling in atmospheric environments, then their microstructures, phase compositions, mechanical properties and sintering mechanism were investigated. It was found that B4C particles distributed relatively homogeneously in the copper matrix. Reaction products of CuC8 and B were observed and identified in the composite. Under increasing B4C particle content, the ultimate tensile, yield strength and elongation to fracture of the composites decreased. Failure mode of composites included: (1) the interfacial debonding and (2) the cleavage fracture of copper. Moreover, micro-discharge between the adjacent particles occurred, and its led to local high temperature at the interface.

AB - Copper matrix composites containing different volume fractions of B4C particles (0–15%) were first fabricated by spark plasma sintering followed by hot rolling in atmospheric environments, then their microstructures, phase compositions, mechanical properties and sintering mechanism were investigated. It was found that B4C particles distributed relatively homogeneously in the copper matrix. Reaction products of CuC8 and B were observed and identified in the composite. Under increasing B4C particle content, the ultimate tensile, yield strength and elongation to fracture of the composites decreased. Failure mode of composites included: (1) the interfacial debonding and (2) the cleavage fracture of copper. Moreover, micro-discharge between the adjacent particles occurred, and its led to local high temperature at the interface.

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