Change search
ReferencesLink to record
Permanent link

Direct link
Modeling of the primary rearrangement stage of liquid phase sintering
KTH, Superseded Departments, Mechanics.
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.).
KTH, Superseded Departments, Mechanics.ORCID iD: 0000-0003-3336-1462
2016 (English)In: Modelling and Simulation in Materials Science and Engineering, ISSN 0965-0393, E-ISSN 1361-651X, Vol. 24, no 7, 075009Article in journal (Refereed) Published
Abstract [en]

The dimensional variations during the rearrangement stage of liquid phase sintering could have a detrimental effect on the dimensional tolerances of the sintered product. A numerical approach to model the liquid phase penetration into interparticle boundaries and the accompanied dimensional variations during the primary rearrangement stage of liquid phase sintering is presented. The coupled system of the Cahn-Hilliard and the Navier-Stokes equations is used to model the penetration of the liquid phase, whereas the rearrangement of the solid particles due to capillary forces is modeled using the equilibrium equation for a linear elastic material. The simulations are performed using realistic physical properties of the phases involved and the effect of green density, wettability and amount of liquid phase is also incorporated in the model. In the first step, the kinetics of the liquid phase penetration and the rearrangement of solid particles connected by a liquid bridge is modeled. The predicted and the calculated (analytical) results are compared in order to validate the numerical model. The numerical model is then extended to simulate the dimensional changes during primary rearrangement stage and a qualitative match with the published experimental data is achieved.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2016. Vol. 24, no 7, 075009
Keyword [en]
COMSOL multiphysics, dimensional variations, liquid phase penetration, particle motion, primary rearrangement, phase field modeling, sintering
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-196414DOI: 10.1088/0965-0393/24/7/075009ISI: 000385682800004ScopusID: 2-s2.0-84991758299OAI: oai:DiVA.org:kth-196414DiVA: diva2:1050273
Funder
VINNOVA
Note

QC 20161128

Available from: 2016-11-28 Created: 2016-11-14 Last updated: 2016-11-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Tahir, Abdul MalikMalik, AmerAmberg, Gustav
By organisation
MechanicsMathematics (Dept.)
In the same journal
Modelling and Simulation in Materials Science and Engineering
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 8 hits
ReferencesLink to record
Permanent link

Direct link