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Densification of Monosdisperse Iron Nanoparticles from a Colloidal Dispersion at Moderate Heating Rates and Temperatures

Published online by Cambridge University Press:  26 February 2011

Nathan B Crane ,
Emanuel Sachs  and
Samuel M Allen
Nathan B Crane
Affiliation:
ncrane@alum.mit.edu, Sandia National Laboratories, PO Box 5800 MS 1245, Albuquerque, NM, 87185, United States, 505-284-7841
Emanuel Sachs
Affiliation:
sachs@mit.edu, Massachusetts Institute of Technology, Mechanical Engineering, United States
Samuel M Allen
Affiliation:
smallen@mit.edu, Massachusetts Institute of Technology, Materials Science and Engineering, United States
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Abstract

This work reports on the densification of iron nanoparticles heated at moderate rates without applied pressure as observed by TEM imaging, gas adsorption pore size measurement, and X-ray diffraction. Despite a low packing density, the small pore size is amenable to significant densification by pressureless sintering. Carbon residues from the stabilizing ligands affect both the composition and processing of the particles. This approach is amenable to deposition on non-planar or fragile substrates. Additionally, large areas can be processed in parallel.

Keywords

sinteringnanostructuredensification
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 903: Symposium Z – Amorphous and Nanocrystalline Metals for Structural Applications , 2005 , 0903-Z08-03
Copyright
Copyright © Materials Research Society 2006

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