Analysis of particle growth by coalescence during liquid phase sintering

Journal Article · Fri Jun 01 00:00:00 EDT 1984 · Acta Metall.; (United States)

DOI:https://doi.org/10.1016/0001-6160(84)90207-4· OSTI ID:6464246

Takajo, S; Kaysser, W A; Petzow, G

A statistical approach has been applied to particle coarsening during liquid phase sintering assuming direct particle coalescence as basic growth mechanism instead of Ostwald ripening. The coalescence process controlled by diffusion through the melt results in an increase of the average particle size proportional to the cube root of sintering time. After a short initial sintering interval the particle size distribution approaches a unique normalized form which is broader than forms predicted by Ostwald ripening theories. The effect of preferred coalescence possibilities for definite particle size ranges and the effect of concurrent coalescence and Ostwald ripening are discussed.

• Research Organization: Max-Planck-Institut fur Metallforschung, Institut fur Werkstoffwissenschaften Pulvermetallurgisches Laboratorium. Heisenbergstr. 5, D-7000 Stuttgart
• OSTI ID: 6464246
• Journal Information: Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 32:1; ISSN AMETA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
COALESCENCE
CONTROL
DIFFUSION
DISTRIBUTION
FABRICATION
GRAIN GROWTH
PARTICLE SIZE
PARTICLES
PROCESS CONTROL
RIPENING
SINTERING
SIZE
TEXTURE