Fabrication of Al2O3-Cu nanocomposites using rotary chemical vapor deposition and spark plasma sintering

Jianfeng Zhang; Takashi Goto

doi:10.1155/2015/790361

Fabrication of Al₂O₃-Cu nanocomposites using rotary chemical vapor deposition and spark plasma sintering

Jianfeng Zhang, Takashi Goto

Materials Processing and Characterization Division

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

4 Citations (Scopus)

Abstract

Atwo-step rotarychemical vapordeposition technique wasdevelopedtouniformlymixCunanoparticleswiththe?Al₂O₃ powders, and then the as-obtained powders were consolidated to Al₂O₃-Cu nanocomposites by spark plasma sintering.In the RCVD process, the metal-organic precursor of copper dipivaloylmethanate (Cu(DPM)₂) reacted with O₂ and then was reduced by H₂ in order to erase the contamination of carbon. At 1473 K, the relative density of Al₂O₃-Cu increased with increasing C_Cu and the maximum value was 97.7% at C_Cu = 5.2 mass%. The maximum fracture toughness of Al₂O₃-Cu was 4.1 MPa m^1/2 at C_Cu = 3.8 mass%, and 1 MPa m^1/2 higher than that of monolithic Al₂O₃, validating the beneficial effects of Cu nanoparticles.

Original language	English
Article number	790361
Journal	Journal of Nanomaterials
Volume	2015
DOIs	https://doi.org/10.1155/2015/790361
Publication status	Published - 2015

ASJC Scopus subject areas

Materials Science(all)

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title = "Fabrication of Al2O3-Cu nanocomposites using rotary chemical vapor deposition and spark plasma sintering",

abstract = "Atwo-step rotarychemical vapordeposition technique wasdevelopedtouniformlymixCunanoparticleswiththe?Al2O3 powders, and then the as-obtained powders were consolidated to Al2O3-Cu nanocomposites by spark plasma sintering.In the RCVD process, the metal-organic precursor of copper dipivaloylmethanate (Cu(DPM)2) reacted with O2 and then was reduced by H2 in order to erase the contamination of carbon. At 1473 K, the relative density of Al2O3-Cu increased with increasing CCu and the maximum value was 97.7% at CCu = 5.2 mass%. The maximum fracture toughness of Al2O3-Cu was 4.1 MPa m1/2 at CCu = 3.8 mass%, and 1 MPa m1/2 higher than that of monolithic Al2O3, validating the beneficial effects of Cu nanoparticles.",

author = "Jianfeng Zhang and Takashi Goto",

note = "Publisher Copyright: {\textcopyright} 2015 Jianfeng Zhang and Takashi Goto.",

year = "2015",

doi = "10.1155/2015/790361",

language = "English",

volume = "2015",

journal = "Journal of Nanomaterials",

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T1 - Fabrication of Al2O3-Cu nanocomposites using rotary chemical vapor deposition and spark plasma sintering

AU - Zhang, Jianfeng

AU - Goto, Takashi

PY - 2015

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N2 - Atwo-step rotarychemical vapordeposition technique wasdevelopedtouniformlymixCunanoparticleswiththe?Al2O3 powders, and then the as-obtained powders were consolidated to Al2O3-Cu nanocomposites by spark plasma sintering.In the RCVD process, the metal-organic precursor of copper dipivaloylmethanate (Cu(DPM)2) reacted with O2 and then was reduced by H2 in order to erase the contamination of carbon. At 1473 K, the relative density of Al2O3-Cu increased with increasing CCu and the maximum value was 97.7% at CCu = 5.2 mass%. The maximum fracture toughness of Al2O3-Cu was 4.1 MPa m1/2 at CCu = 3.8 mass%, and 1 MPa m1/2 higher than that of monolithic Al2O3, validating the beneficial effects of Cu nanoparticles.

AB - Atwo-step rotarychemical vapordeposition technique wasdevelopedtouniformlymixCunanoparticleswiththe?Al2O3 powders, and then the as-obtained powders were consolidated to Al2O3-Cu nanocomposites by spark plasma sintering.In the RCVD process, the metal-organic precursor of copper dipivaloylmethanate (Cu(DPM)2) reacted with O2 and then was reduced by H2 in order to erase the contamination of carbon. At 1473 K, the relative density of Al2O3-Cu increased with increasing CCu and the maximum value was 97.7% at CCu = 5.2 mass%. The maximum fracture toughness of Al2O3-Cu was 4.1 MPa m1/2 at CCu = 3.8 mass%, and 1 MPa m1/2 higher than that of monolithic Al2O3, validating the beneficial effects of Cu nanoparticles.

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Fabrication of Al₂O₃-Cu nanocomposites using rotary chemical vapor deposition and spark plasma sintering

Abstract

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