---
_id: '26140'
abstract:
- lang: eng
text: The viscous-flow sintering of different agglomerate particle morphologies
is studied by three-dimensional computer simulations based on the concept of fractional
volume of fluid. For a fundamental understanding of particle sintering characteristics,
the neck growth kinetics in agglomerate chains and in doublets consisting of differently
sized primary particles is investigated. Results show that different sintering
contacts in agglomerates even during the first stages are not completely independent
from each other, even though differences are small. The neck growth kinetics of
differently sized primary particles is determined by the smaller one up to a size
difference by a factor of approximately 2, whereas for larger size differences,
the kinetics becomes faster. In particular, the agglomerate sintering kinetics
is investigated for particle chains of different lengths and for different particle
morphologies each having ten primary particles and nine initial sintering contacts.
For agglomerate chains, the kinetics approximately can be normalized by using
the radius of the fully coalesced sphere. In general, different agglomerate morphologies
show equal kinetics during the first sintering stages, whereas during advanced
stages, compact morphologies show significantly faster sintering progress than
more open morphologies. Hence, the overall kinetics cannot be described by simply
using constant morphology correction factors such as fractal dimension or mean
coordination number which are used in common sintering models. However, for the
first stages of viscous-flow agglomerate sintering, which are the most important
for many particle processes, a sintering equation is presented. Although we use
agglomerates consisting of spherical primary particles, our methodology can be
applied to other aggregate geometries as well.
author:
- first_name: M. J.
full_name: Kirchhof, M. J.
last_name: Kirchhof
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
- first_name: W.
full_name: Peukert, W.
last_name: Peukert
citation:
ama: Kirchhof MJ, Schmid H-J, Peukert W. Three-dimensional simulation of viscous-flow
agglomerate sintering. Physical Review E. 2009;80(2):026319. doi:10.1103/physreve.80.026319
apa: Kirchhof, M. J., Schmid, H.-J., & Peukert, W. (2009). Three-dimensional
simulation of viscous-flow agglomerate sintering. Physical Review E, 80(2),
026319. https://doi.org/10.1103/physreve.80.026319
bibtex: '@article{Kirchhof_Schmid_Peukert_2009, title={Three-dimensional simulation
of viscous-flow agglomerate sintering}, volume={80}, DOI={10.1103/physreve.80.026319},
number={2}, journal={Physical Review E}, author={Kirchhof, M. J. and Schmid, Hans-Joachim
and Peukert, W.}, year={2009}, pages={026319} }'
chicago: 'Kirchhof, M. J., Hans-Joachim Schmid, and W. Peukert. “Three-Dimensional
Simulation of Viscous-Flow Agglomerate Sintering.” Physical Review E 80,
no. 2 (2009): 026319. https://doi.org/10.1103/physreve.80.026319.'
ieee: 'M. J. Kirchhof, H.-J. Schmid, and W. Peukert, “Three-dimensional simulation
of viscous-flow agglomerate sintering,” Physical Review E, vol. 80, no.
2, p. 026319, 2009, doi: 10.1103/physreve.80.026319.'
mla: Kirchhof, M. J., et al. “Three-Dimensional Simulation of Viscous-Flow Agglomerate
Sintering.” Physical Review E, vol. 80, no. 2, 2009, p. 026319, doi:10.1103/physreve.80.026319.
short: M.J. Kirchhof, H.-J. Schmid, W. Peukert, Physical Review E 80 (2009) 026319.
date_created: 2021-10-13T15:23:14Z
date_updated: 2022-01-06T06:57:16Z
doi: 10.1103/physreve.80.026319
intvolume: ' 80'
issue: '2'
language:
- iso: eng
page: '026319 '
publication: Physical Review E
publication_identifier:
issn:
- 1539-3755
- 1550-2376
publication_status: published
status: public
title: Three-dimensional simulation of viscous-flow agglomerate sintering
type: journal_article
user_id: '70093'
volume: 80
year: '2009'
...