Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering

Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering

A two-step rotary chemical vapor deposition technique was developed to uniformly mix Cu nanoparticles with the γAl2O3 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 dipivaloy...

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Main Authors: Jianfeng Zhang, Takashi Goto
Format: Article
Language:English
Published: Hindawi Limited 2015-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2015/790361
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spelling doaj-9c641330a5c745098b28fd13786b932a2020-11-24T23:13:51ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292015-01-01201510.1155/2015/790361790361Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma SinteringJianfeng Zhang0Takashi Goto1College of Mechanics and Materials, Hohai University, Nanjing 210098, ChinaInstitute for Materials Research, Tohoku University, Sendai 980-8577, JapanA two-step rotary chemical vapor deposition technique was developed to uniformly mix Cu nanoparticles with the γAl2O3 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.http://dx.doi.org/10.1155/2015/790361
collection DOAJ
language English
format Article
sources DOAJ
author Jianfeng Zhang
Takashi Goto
spellingShingle Jianfeng Zhang
Takashi Goto
Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering
Journal of Nanomaterials
author_facet Jianfeng Zhang
Takashi Goto
author_sort Jianfeng Zhang
title Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering
title_short Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering
title_full Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering
title_fullStr Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering
title_full_unstemmed Fabrication of Al2O3-Cu Nanocomposites Using Rotary Chemical Vapor Deposition and Spark Plasma Sintering
title_sort fabrication of al2o3-cu nanocomposites using rotary chemical vapor deposition and spark plasma sintering
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2015-01-01
description A two-step rotary chemical vapor deposition technique was developed to uniformly mix Cu nanoparticles with the γAl2O3 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.
url http://dx.doi.org/10.1155/2015/790361
work_keys_str_mv AT jianfengzhang fabricationofal2o3cunanocompositesusingrotarychemicalvapordepositionandsparkplasmasintering
AT takashigoto fabricationofal2o3cunanocompositesusingrotarychemicalvapordepositionandsparkplasmasintering
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