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Influence of oxides on the stability of zinc foam
Published in
2011
Volume: 46
   
Issue: 24
Pages: 7806 - 7814
Abstract
The influence of oxides on the stabilisation of zinc foam made by foaming-compacted powder mixtures has been investigated by varying the oxide content in the zinc powder used by oxidation and reduction. Optical, scanning electron and transmission electron microscopy as well as energy dispersive X-ray mapping were used to determine the oxide distribution, morphology and structure in the foams. The study revealed that with increase in the oxide content of the foam, the maximum expansion and expansion rate increased. Small amount of nano-sized oxide particles and their cluster, which are randomly distributed, were observed within the bulk of foam. But the major fraction of oxides is observed on the surface of pores in the form of clusters. These clusters are distributed uniformly all over the surface. Effect of these oxides on the stability of foam is discussed. The formation of satellite pores, which is characteristic signature of zinc foams, and their stability, is investigated. © 2011 Springer Science+Business Media, LLC.
About the journal
JournalJournal of Materials Science
ISSN00222461
Open AccessNo
Concepts (14)
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    Characteristic signature
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    Energy dispersive x-ray
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    EXPANSION RATE
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    Nano-sized
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    Oxidation and reduction
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    OXIDE CONTENTS
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    Oxide particles
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    POWDER MIXTURES
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    Randomly distributed
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    Scanning electrons
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    ZINC FOAMS
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    ZINC POWDER
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    Transmission electron microscopy
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    Zinc