Journal Article

FZJ-2019-02956

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Micromechanics of formation and shrinkage of a closed pore in sintering by coupled grain boundary/surface diffusion

Wakai, F. (Corresponding author) ; Okuma, G. ; Nishiyama, N. ; Guillon, O.FZJ*

2019
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/28822  doi:10.1016/j.jeurceramsoc.2019.03.022

Abstract: The microscopic principle of the stress-assisted sintering is that the relative velocity between two adjoining particles is proportional to the sum of the sintering force and the mechanical force transmitted by the contact. Here, we simulated sintering of four particles by coupled grain boundary diffusion and surface diffusion, in order to analyze how the sintering force varies with the evolution of particle shape, i.e., pinch-off of pore channel, formation and shrinkage of a closed pore. The shrinkage rate of the pore volume was proportional to the relative velocity of particles, then, to the sintering force. We discussed the effect of mechanical stress on sintering also.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)
2. JARA-ENERGY (JARA-ENERGY)

Research Program(s):

1. 113 - Methods and Concepts for Material Development (POF3-113) (POF3-113)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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