The Microstructural Effects on the Mechanical and Thermal Properties of Pulsed Electric Current Sintered Cu-Al2O3 Composites

R. Ritasalo; X.W. Liu; O. Söderberg; A. Keski-Honkola; V. Pitkänen; S-P. Hannula

doi:10.1016/j.proeng.2011.04.023

The Microstructural Effects on the Mechanical and Thermal Properties of Pulsed Electric Current Sintered Cu-Al2O3 Composites

R. Ritasalo, X.W. Liu, O. Söderberg, A. Keski-Honkola, V. Pitkänen, S-P. Hannula

Tutkimustuotos: Lehtiartikkeli › Conference article › Scientific › vertaisarvioitu

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162 Lataukset (Pure)

Abstrakti

In this work, the influences of the microstructure on the mechanical and thermal properties of pulsed electric currentsintered (PECS) Cu-Al2O3 composites are investigated. The process parameters were optimized for four different grades ofcomposite powders to obtain dense samples (98-99.6%T.D.). Higher hardness and better thermal stability were attained tothe samples compacted from commercial internally oxidized (IO) powders than to the compacts made from the chemicallysynthesised experimental powders. This difference was attributed to the distribution and size of Al2O3-particles in the twotypes of composites. The CTE values of all the compacts were between 17 and 20 x 10-6K-1 (370-770 K). The results showthat PECS can be used to produce dense high quality Cu-Al2O3 composites.

Alkuperäiskieli	Englanti
Sivut	124-129
Sivumäärä	6
Julkaisu	Procedia Engineering
Vuosikerta	10
DOI - pysyväislinkit	https://doi.org/10.1016/j.proeng.2011.04.023
Tila	Julkaistu - 2011
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisuussa
Tapahtuma	International Conference on the Mechanical Behavior of Materials - Milano, Italia Kesto: 5 kesäk. 2011 → 9 kesäk. 2011 Konferenssinumero: 11

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10.1016/j.proeng.2011.04.023

1-s2.0-S1877705811002116-mainFinal published version, 1,38 MBLisenssi: CC BY-NC-ND

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@article{b78545cae79d434a9609ff8aaed8b23c,

title = "The Microstructural Effects on the Mechanical and Thermal Properties of Pulsed Electric Current Sintered Cu-Al2O3 Composites",

abstract = "In this work, the influences of the microstructure on the mechanical and thermal properties of pulsed electric currentsintered (PECS) Cu-Al2O3 composites are investigated. The process parameters were optimized for four different grades ofcomposite powders to obtain dense samples (98-99.6%T.D.). Higher hardness and better thermal stability were attained tothe samples compacted from commercial internally oxidized (IO) powders than to the compacts made from the chemicallysynthesised experimental powders. This difference was attributed to the distribution and size of Al2O3-particles in the twotypes of composites. The CTE values of all the compacts were between 17 and 20 x 10-6K-1 (370-770 K). The results showthat PECS can be used to produce dense high quality Cu-Al2O3 composites.",

keywords = "Copper composites, Pulsed electric current sintering (PECS), Microstructure, Nanoindentation, Thermal stability, CTE",

author = "R. Ritasalo and X.W. Liu and O. S{\"o}derberg and A. Keski-Honkola and V. Pitk{\"a}nen and S-P. Hannula",

year = "2011",

doi = "10.1016/j.proeng.2011.04.023",

language = "English",

volume = "10",

pages = "124--129",

journal = "Procedia Engineering",

issn = "1877-7058",

publisher = "Elsevier BV",

note = "International Conference on the Mechanical Behavior of Materials, ICM ; Conference date: 05-06-2011 Through 09-06-2011",

}

TY - JOUR

T1 - The Microstructural Effects on the Mechanical and Thermal Properties of Pulsed Electric Current Sintered Cu-Al2O3 Composites

AU - Ritasalo, R.

AU - Liu, X.W.

AU - Söderberg, O.

AU - Keski-Honkola, A.

AU - Pitkänen, V.

AU - Hannula, S-P.

N1 - Conference code: 11

PY - 2011

Y1 - 2011

N2 - In this work, the influences of the microstructure on the mechanical and thermal properties of pulsed electric currentsintered (PECS) Cu-Al2O3 composites are investigated. The process parameters were optimized for four different grades ofcomposite powders to obtain dense samples (98-99.6%T.D.). Higher hardness and better thermal stability were attained tothe samples compacted from commercial internally oxidized (IO) powders than to the compacts made from the chemicallysynthesised experimental powders. This difference was attributed to the distribution and size of Al2O3-particles in the twotypes of composites. The CTE values of all the compacts were between 17 and 20 x 10-6K-1 (370-770 K). The results showthat PECS can be used to produce dense high quality Cu-Al2O3 composites.

AB - In this work, the influences of the microstructure on the mechanical and thermal properties of pulsed electric currentsintered (PECS) Cu-Al2O3 composites are investigated. The process parameters were optimized for four different grades ofcomposite powders to obtain dense samples (98-99.6%T.D.). Higher hardness and better thermal stability were attained tothe samples compacted from commercial internally oxidized (IO) powders than to the compacts made from the chemicallysynthesised experimental powders. This difference was attributed to the distribution and size of Al2O3-particles in the twotypes of composites. The CTE values of all the compacts were between 17 and 20 x 10-6K-1 (370-770 K). The results showthat PECS can be used to produce dense high quality Cu-Al2O3 composites.

KW - Copper composites

KW - Pulsed electric current sintering (PECS)

KW - Microstructure

KW - Nanoindentation

KW - Thermal stability

KW - CTE

UR - http://dx.doi.org/10.1016/j.proeng.2011.04.023

U2 - 10.1016/j.proeng.2011.04.023

DO - 10.1016/j.proeng.2011.04.023

M3 - Conference article

SN - 1877-7058

VL - 10

SP - 124

EP - 129

JO - Procedia Engineering

JF - Procedia Engineering

T2 - International Conference on the Mechanical Behavior of Materials

Y2 - 5 June 2011 through 9 June 2011

ER -

The Microstructural Effects on the Mechanical and Thermal Properties of Pulsed Electric Current Sintered Cu-Al2O3 Composites

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