Free Access
Issue |
Microsc. Microanal. Microstruct.
Volume 6, Number 5-6, October / December 1995
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Page(s) | 673 - 683 | |
DOI | https://doi.org/10.1051/mmm:1995157 |
Microsc. Microanal. Microstruct. 6, 673-683 (1995)
DOI: 10.1051/mmm:1995157
1 PA.S.T.I.S - C.N.R.S.M.-S.S. 7 Appia km 712, 72100 Brindisi, Italy
2 Dipartimento di Fisica, Università di Bologna e I.N.EM., via Irnerio 46, 40126 Bologna, Italy
6146 - Structure of solid clusters, nanoparticles, and nanostructured materials.
6480G - Microstructure.
8120G - Preparation of metals and alloys compacts, pseudoalloys.
8120E - Powder techniques, compaction and sintering.
Key words
aluminium -- grain size -- nanostructured materials -- powder metallurgy -- transmission electron microscopy -- nanocrystalline Al -- transmission electron microscopy -- n Al -- mechanical attrition -- inert atmosphere -- cold consolidated bars -- thinning techniques -- TEM -- ion milling -- electrochemical jet polishing -- powders -- carbon film coated grid -- grain size -- thermal treatment -- high resolution images -- 500 K -- Al
© EDP Sciences 1995
DOI: 10.1051/mmm:1995157
Nanocrystalline Al Investigated by Transmission Electron Microscope
Marilena Re1, Marco Alvisi2, Ennio Bonetti2 et Leander Tapfer11 PA.S.T.I.S - C.N.R.S.M.-S.S. 7 Appia km 712, 72100 Brindisi, Italy
2 Dipartimento di Fisica, Università di Bologna e I.N.EM., via Irnerio 46, 40126 Bologna, Italy
Abstract
Nanocrystalline aluminium (n-Al), prepared by
mechanical attrition in an inert atmosphere and in form of cold
consolidated bars, has been investigated by transmission
electron microscopy. The effects of three final thinning
techniques of preparation for TEM, ion-milling, electrochemical
jet-polishing and "powders", have been compared. The most
representative samples prove to be those prepared by putting
some powder on a carbon film coated grid. Information about the
grain sizes for samples prepared by the different techniques and
samples before and after a thermal treatment (500 K) has been
obtained. We have also reported our high-resolution images of
interfaces.
6146 - Structure of solid clusters, nanoparticles, and nanostructured materials.
6480G - Microstructure.
8120G - Preparation of metals and alloys compacts, pseudoalloys.
8120E - Powder techniques, compaction and sintering.
Key words
aluminium -- grain size -- nanostructured materials -- powder metallurgy -- transmission electron microscopy -- nanocrystalline Al -- transmission electron microscopy -- n Al -- mechanical attrition -- inert atmosphere -- cold consolidated bars -- thinning techniques -- TEM -- ion milling -- electrochemical jet polishing -- powders -- carbon film coated grid -- grain size -- thermal treatment -- high resolution images -- 500 K -- Al
© EDP Sciences 1995