Premium
Investigation of the Sintering of Heterogeneous Powder Systems by Synchrotron Microtomography and Discrete Element Simulation
Author(s) -
Olmos Luis,
Martin Christophe L.,
Bouvard Didier,
Bellet Daniel,
Di Michiel Marco
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03037.x
Subject(s) - sintering , discrete element method , materials science , synchrotron , particle (ecology) , powder metallurgy , coordination number , particle size , range (aeronautics) , metallurgy , composite material , chemical engineering , mechanics , optics , chemistry , physics , geology , engineering , oceanography , organic chemistry , ion
Collective particle behavior such as interparticle coordination and particle rearrangement plays a significant role in the sintering of heterogeneous powder systems. Those phenomena have been investigated by in situ X‐ray microtomography and discrete element simulation (DEM). In situ 3D images of sintering copper‐based systems have been obtained at the European Synchrotron Research Facilities. The sintered systems comprise a dense packing of atomized copper powder with a size range of 0–63 μm and the same powder including artificial pores. Quantitative analysis of these images provided valuable data on local strain, coordination number, and particle movement. The sintering of the same systems has been simulated with the discrete element code dp3D. From this set of information, the importance of collective behavior on densification and microstructural evolution is assessed and the relevance of DEM to describe it is discussed.