Anisotropic sintering stress for sintering of particles arranged in orthotropic symmetry

Many sintering bodies shrink in an anisotropic manner when the particle packing is not isotropic. The thermodynamic driving force for the anisotropic shrinkage, i.e. the sintering stress tensor, is determined numerically for an open pore structure with orthotropic symmetry in three dimensions. The s...

Full description

Saved in:
Bibliographic Details
Published inActa materialia Vol. 57; no. 13; pp. 3955 - 3964
Main Authors Wakai, Fumihiro, Shinoda, Yutaka
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.08.2009
Elsevier
Subjects
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Micromechanical modeling
Powder metallurgy. Composite materials
Production techniques
Simulation
Sintered metals and alloys. Pseudo alloys. Cermets
Sintering
Simulation
Sintering
Micromechanical modeling
Powder metallurgy
Modeling
Online AccessGet full text

Cover

More Information
Summary:Many sintering bodies shrink in an anisotropic manner when the particle packing is not isotropic. The thermodynamic driving force for the anisotropic shrinkage, i.e. the sintering stress tensor, is determined numerically for an open pore structure with orthotropic symmetry in three dimensions. The sintering stress tensor is calculated rigorously by the energy method, the force balance method and the volume averaging method. The deviatoric component of sintering stress is approximately proportional to the logarithm of the aspect ratio of the orthorhombic volume element, and acts so as to deform the elongated particles to be more isotropic in most cases.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2009.04.049