Why do crystalline nanoparticles agglomerate with low misorientations?

E. Rabkin; G. Gottstein; L. S. Shvindlerman

doi:10.1016/j.scriptamat.2011.09.030

Why do crystalline nanoparticles agglomerate with low misorientations?

E. Rabkin, G. Gottstein, L. S. Shvindlerman

Materials Science & Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We considered the role of a "grain boundary - free surface" triple line in adhesive contact formation between spherical nanoparticles and calculated the critical value of the triple line energy above which the nanoparticles do not stick together. Based on this result, we propose a new nanoparticles agglomeration mechanism, which explains the formation of large agglomerates of crystallographically aligned nanoparticles during nanopowder processing.

Original language	English
Pages (from-to)	1101-1104
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	12
DOIs	https://doi.org/10.1016/j.scriptamat.2011.09.030
State	Published - Dec 2011

Keywords

Grain boundaries
Nanocrystalline materials
Powder processing
Triple junctions

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
General Materials Science

Access to Document

10.1016/j.scriptamat.2011.09.030

Cite this

@article{5baf1e28683c4c7b854cf521f97f5fee,

title = "Why do crystalline nanoparticles agglomerate with low misorientations?",

abstract = "We considered the role of a {"}grain boundary - free surface{"} triple line in adhesive contact formation between spherical nanoparticles and calculated the critical value of the triple line energy above which the nanoparticles do not stick together. Based on this result, we propose a new nanoparticles agglomeration mechanism, which explains the formation of large agglomerates of crystallographically aligned nanoparticles during nanopowder processing.",

keywords = "Grain boundaries, Nanocrystalline materials, Powder processing, Triple junctions",

author = "E. Rabkin and G. Gottstein and Shvindlerman, {L. S.}",

note = "Funding Information: The authors would like to thank an anonymous reviewer for drawing their attention to the problem of contact nucleation. Financial assistance from the Russell Berry Nanotechnology Institute at the Technion and the Deutsche Forschungsgemeinschaft ( 436RUS113/842/0-1 ) is gratefully acknowledged. The cooperation between G.G. and L.S.S. was supported by the Deutsche Forschungsgemeinschaft ( 436RUS113/846/0-1(R) ) and the Russian Foundation of Fundamental Research ( DFG-RRFI 060204015 ).",

year = "2011",

month = dec,

doi = "10.1016/j.scriptamat.2011.09.030",

language = "الإنجليزيّة",

volume = "65",

pages = "1101--1104",

journal = "Scripta Materialia",

issn = "1359-6462",