Fabrication of Cu-W nanocomposites by integration of self-propagating high-temperature synthesis and hot explosive consolidation technologies

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dc.contributor.authorAydinyan, S. V.
dc.contributor.authorKirakosyan, H. V.
dc.contributor.authorZakaryan, M. K.
dc.contributor.authorAbovyan, L. S.
dc.contributor.authorKharatyan, S. L.
dc.contributor.authorPeikrishvili, A.
dc.contributor.authorMamniashvili, G.
dc.contributor.authorGodibadze, B.
dc.contributor.authorChagelishvili, E. Sh
dc.contributor.authorLesuer, D. R.
dc.contributor.authorGutierrez, M.
dc.contributor.institutionSG
dc.date.accessioned2024-07-24T12:12:54Z
dc.date.available2024-07-24T12:12:54Z
dc.date.issued2018
dc.descriptionPublisher Copyright: © 2018 Al-Farabi Kazakh National University.
dc.description.abstractManufacturing W-Cu composite nanopowders was performed via joint reduction of CuO and WO3 oxides with various ratios (W:Cu = 2:1, 1:1, 1:3, 1:13.5) using combined Mg–C reducer. Combustion synthesis was used to synthesize homogeneous composite powders of W-Cu and hot explosive consolidation (HEC) technique was utilized to fabricate dense compacts from ultrafine structured W-Cu powders. Compact samples obtained from nanometer sized SHS powders demonstrated weak relation between the susceptibility and the applied magnetic field in comparison with the W and Cu containing micrometer grain size of metals. The density, microstructural uniformity and mechanical properties of SHS&HEC prepared samples were also evaluated. Internal friction (Q-1) and Young modulus (E) of fabricated composites studied for all samples indicated that the temperature 1000 °С is optimal for full annealing of microscopic defects of structure and internal stresses. Improved characteristics for Young modulus and internal friction were obtained for the W:Cu = 1:13.5 composite. According to microhardness measurement results, W-Cu nanopowders obtained by SHS method and compacted by HEC technology were characterized by enhanced (up to 85%) microhardness.en
dc.description.sponsorshipThe authors gratefully acknowledge the financial support of the International Science and Technology Center (ISTC project # A-2123).
dc.description.statusPeer reviewed
dc.format.extent9
dc.identifier.citationAydinyan , S V , Kirakosyan , H V , Zakaryan , M K , Abovyan , L S , Kharatyan , S L , Peikrishvili , A , Mamniashvili , G , Godibadze , B , Chagelishvili , E S , Lesuer , D R & Gutierrez , M 2018 , ' Fabrication of Cu-W nanocomposites by integration of self-propagating high-temperature synthesis and hot explosive consolidation technologies ' , Eurasian Chemico-Technological Journal , vol. 20 , no. 4 , pp. 301-309 . https://doi.org/10.18321/ectj763
dc.identifier.doi10.18321/ectj763
dc.identifier.issn1562-3920
dc.identifier.urihttps://hdl.handle.net/11556/4321
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85060876035&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofEurasian Chemico-Technological Journal
dc.relation.projectIDIstituto di Scienze e Tecnologie della Cognizione, ISTC, # A-2123
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsHot explosive consolidation
dc.subject.keywordsMechanical properties
dc.subject.keywordsMicrohardness
dc.subject.keywordsSHS
dc.subject.keywordsTungsten-copper nanocomposite
dc.subject.keywordsGeneral Chemistry
dc.subject.keywordsGeneral Chemical Engineering
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsCondensed Matter Physics
dc.titleFabrication of Cu-W nanocomposites by integration of self-propagating high-temperature synthesis and hot explosive consolidation technologiesen
dc.typejournal article
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