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Porous copper template from partially spark plasma-sintered Cu-Zn aggregate via dezincification
Published in Indian Academy of Sciences
2014
Volume: 37
   
Issue: 4
Pages: 743 - 752
Abstract
Present work deals with the preparation of spark plasma-sintered Cu-Zn aggregate (5, 10 and 20 wt% Zn) with interfacial bonding only starting from elemental powders of Cu and Zn (99·9% purity) and subsequently making of porous template of Cu by dezincification. Sintering is done so as to achieve only interfacial bonding with the aim to maintain maximum potential difference between the Cu and Zn particles during dezincification process in various solutions, viz. 1 N HCl and 3·5 wt% NaCl solutions. X-ray diffraction, optical microscopy and SEM-EDS are carried out to examine microstructural evolution and subsequent changes in hardness with sintering temperatures and different Zn percentages. Dezincification and pore formation are conducted on sintered 0·5 mm thick 12 mm diameter disc samples. The size, distribution and nature of pores in porous templates of Cu are then investigated using optical microscopy and SEM-EDS analysis. © Indian Academy of Sciences.
About the journal
JournalBulletin of Materials Science
PublisherIndian Academy of Sciences
ISSN02504707
Open AccessYes
Concepts (18)
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    Aggregates
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    Corrosion
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    Metals
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    OPTICAL DATA STORAGE
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    Optical microscopy
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    Powder metallurgy
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    Powder metals
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    X ray diffraction
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    Zinc
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    DEZINCIFICATION
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    Elemental powders
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    Interfacial bonding
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    POROUS COPPERS
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    Porous structures
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    POROUS TEMPLATES
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    POTENTIAL DIFFERENCE
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    Sintering temperatures
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    Sintering