Sintering kinetics and mechanism of vitreous nanoparticles

M.J. Kirchhof, H. Förster, H.-J. Schmid, W. Peukert, Journal of Aerosol Science 45 (2012) 26–39.

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Journal Article | Published | English
Author
Kirchhof, M.J.; Förster, H.; Schmid, Hans-JoachimLibreCat; Peukert, W.
Abstract
The sintering of vitreous nanoparticle doublets is investigated numerically by a volume of fluid method coupled to Hamaker summation and experimentally by a high-temperature sintering flow reactor as well as by doublet shape analysis in the transmission electron microscope. In particular, the characteristic differences between nanoparticulate and bulk sintering are studied. The sintering mechanism of vitreous nanoparticles is determined to be viscous flow with interparticle van der Waals interactions acting as additional driving force. The early stages of the nanoparticle sintering kinetics are inversely proportional to the square of the particle size, instead of an indirect proportionality to the first order of the particle size for the entire bulk process. The transition between nanoparticulate and bulk sintering is localised to primary particle diameters of approx. 200–300 nm.
Publishing Year
Journal Title
Journal of Aerosol Science
Volume
45
Page
26-39
ISSN
LibreCat-ID

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Kirchhof MJ, Förster H, Schmid H-J, Peukert W. Sintering kinetics and mechanism of vitreous nanoparticles. Journal of Aerosol Science. 2012;45:26-39. doi:10.1016/j.jaerosci.2011.10.006
Kirchhof, M. J., Förster, H., Schmid, H.-J., & Peukert, W. (2012). Sintering kinetics and mechanism of vitreous nanoparticles. Journal of Aerosol Science, 45, 26–39. https://doi.org/10.1016/j.jaerosci.2011.10.006
@article{Kirchhof_Förster_Schmid_Peukert_2012, title={Sintering kinetics and mechanism of vitreous nanoparticles}, volume={45}, DOI={10.1016/j.jaerosci.2011.10.006}, journal={Journal of Aerosol Science}, author={Kirchhof, M.J. and Förster, H. and Schmid, Hans-Joachim and Peukert, W.}, year={2012}, pages={26–39} }
Kirchhof, M.J., H. Förster, Hans-Joachim Schmid, and W. Peukert. “Sintering Kinetics and Mechanism of Vitreous Nanoparticles.” Journal of Aerosol Science 45 (2012): 26–39. https://doi.org/10.1016/j.jaerosci.2011.10.006.
M. J. Kirchhof, H. Förster, H.-J. Schmid, and W. Peukert, “Sintering kinetics and mechanism of vitreous nanoparticles,” Journal of Aerosol Science, vol. 45, pp. 26–39, 2012, doi: 10.1016/j.jaerosci.2011.10.006.
Kirchhof, M. J., et al. “Sintering Kinetics and Mechanism of Vitreous Nanoparticles.” Journal of Aerosol Science, vol. 45, 2012, pp. 26–39, doi:10.1016/j.jaerosci.2011.10.006.

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