Modelling of nanoparticle sintering under electrical boundary conditions

A.T. Alastalo, H. Seppä, J.H. Leppäniemi, M.J. Aronniemi, M.L. Allen, T. Mattila

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A statistical model for sintering of solution-processed electrically conducting nanoparticle structures is developed. The model considers thermal expansion of the particles under Joule heating as the driving force of the process. The results are used to explain the fast resistance transition observed for the recently reported rapid electrical sintering process. A comparison with experimental results shows good agreement for the kinetics of the process. A heat-equation solution is also derived for a generic geometry of a printed conductor. This provides a basis for further refinements of the model to take other driving mechanisms, such as diffusion and inter-particle forces, into account. The results of this paper help in developing quantitative understanding of the physical processes that are relevant in nanoparticle sintering.
Original languageEnglish
Article number485501
JournalJournal of Physics D: Applied Physics
Volume43
Issue number48
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

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sintering
Sintering
Boundary conditions
boundary conditions
Nanoparticles
nanoparticles
Joule heating
Thermal expansion
thermal expansion
conductors
conduction
thermodynamics
Kinetics
Geometry
kinetics
geometry
Statistical Models
Hot Temperature

Cite this

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title = "Modelling of nanoparticle sintering under electrical boundary conditions",
abstract = "A statistical model for sintering of solution-processed electrically conducting nanoparticle structures is developed. The model considers thermal expansion of the particles under Joule heating as the driving force of the process. The results are used to explain the fast resistance transition observed for the recently reported rapid electrical sintering process. A comparison with experimental results shows good agreement for the kinetics of the process. A heat-equation solution is also derived for a generic geometry of a printed conductor. This provides a basis for further refinements of the model to take other driving mechanisms, such as diffusion and inter-particle forces, into account. The results of this paper help in developing quantitative understanding of the physical processes that are relevant in nanoparticle sintering.",
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Modelling of nanoparticle sintering under electrical boundary conditions. / Alastalo, A.T.; Seppä, H.; Leppäniemi, J.H.; Aronniemi, M.J.; Allen, M.L.; Mattila, T.

In: Journal of Physics D: Applied Physics, Vol. 43, No. 48, 485501, 2010.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Modelling of nanoparticle sintering under electrical boundary conditions

AU - Alastalo, A.T.

AU - Seppä, H.

AU - Leppäniemi, J.H.

AU - Aronniemi, M.J.

AU - Allen, M.L.

AU - Mattila, T.

N1 - Project code: 20836 Project code: 20852

PY - 2010

Y1 - 2010

N2 - A statistical model for sintering of solution-processed electrically conducting nanoparticle structures is developed. The model considers thermal expansion of the particles under Joule heating as the driving force of the process. The results are used to explain the fast resistance transition observed for the recently reported rapid electrical sintering process. A comparison with experimental results shows good agreement for the kinetics of the process. A heat-equation solution is also derived for a generic geometry of a printed conductor. This provides a basis for further refinements of the model to take other driving mechanisms, such as diffusion and inter-particle forces, into account. The results of this paper help in developing quantitative understanding of the physical processes that are relevant in nanoparticle sintering.

AB - A statistical model for sintering of solution-processed electrically conducting nanoparticle structures is developed. The model considers thermal expansion of the particles under Joule heating as the driving force of the process. The results are used to explain the fast resistance transition observed for the recently reported rapid electrical sintering process. A comparison with experimental results shows good agreement for the kinetics of the process. A heat-equation solution is also derived for a generic geometry of a printed conductor. This provides a basis for further refinements of the model to take other driving mechanisms, such as diffusion and inter-particle forces, into account. The results of this paper help in developing quantitative understanding of the physical processes that are relevant in nanoparticle sintering.

U2 - 10.1088/0022-3727/43/48/485501

DO - 10.1088/0022-3727/43/48/485501

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JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

SN - 0022-3727

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