Numerical method for simulating sintering

A numerical method is proposed in order to simulate sintering, based on fundamental equations of diffusion theory (Fick equation). The method makes it possible to consider actual geometry of particles from which a powder compact is composed, and it may be used for an assembly of particles of another...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2009-05, Vol.50 (3), p.191-197
Main Author: Galakhov, A. V.
Format: Article
Language:English
Subjects:
Aluminum oxide
Assembly
Boundaries
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Computer simulation
Electrical engineering
Glass
Materials Science
Mathematical analysis
Natural Materials
Numerical analysis
Powder compacts
Scientific Research and Development
Sintering (powder metallurgy)
Studies
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Summary:A numerical method is proposed in order to simulate sintering, based on fundamental equations of diffusion theory (Fick equation). The method makes it possible to consider actual geometry of particles from which a powder compact is composed, and it may be used for an assembly of particles of another shape, dimensions and reciprocal position. A boundary element method is used for numerical realization. Results are presented for simulating sintering of Al 2 O 3 particles of different shape and sizes. Dependences are presented for the effect of different material characteristics, in particular dihedral angle (it specifies the relationship of free surface energy and intergranular boundary energy), on sintering kinetics and the value of intergranular boundary achieved.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-009-9170-3