Effect of the powder consolidation method type on the microstructure and selected properties of Al2O3-Cu-Ni composites

Justyna Zygmuntowicz , Marcin Wachowski , Paulina Piotrkiewicz , Waldemar Kaszuwara

Abstract

The present research is focused on the characterization of the composites from Al2O3-Cu-Ni system. Two methods of ceramic-metal composite forming were applied: uniaxial powder pressing and Pulse Plasma Sintering (PPS). To obtain the samples the powder mixtures containing 85 vol.% of Al2O3 and 15 vol.% of metal powders were used. Influence of the sintering process on microstructure and mechanical properties of the two series of the composites was analyzed in detail. The selected physical properties of samples were characterized by Archimedes immersion method. Vickers hardness and the fracture toughness of the composites was determined as well. The microstructure of the composites was characterized by XRD, SEM, EDX. Fractography investigation was carried out as well. Independently on composite production method Al2O3, Cu, Ni, and CuNi phases were revealed. Fractography investigation results revealed different character of fracture in dependence of fabrication method. Pulse Plasma Sintered samples were characterized by higher crack resistance and higher Vickers hardness in comparison to the specimens manufactured by uniaxial pressing.
Author Justyna Zygmuntowicz (FMSE / DCFM)
Justyna Zygmuntowicz,,
- Division of Construction and Functional Materials
, Marcin Wachowski - Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego (WAT)
Marcin Wachowski,,
-
, Paulina Piotrkiewicz (FMSE / DCFM)
Paulina Piotrkiewicz,,
- Division of Construction and Functional Materials
, Waldemar Kaszuwara (FMSE / DCFM)
Waldemar Kaszuwara,,
- Division of Construction and Functional Materials
Journal seriesArchives of Metallurgy and Materials, ISSN 1733-3490, e-ISSN 2300-1909
Issue year2020
Vol65
Pages967-974
Publication size in sheets0.5
Keywords in EnglishComposites, Pulse Plasma Sintering, Uniaxial Powder Pressing, Scanning Electron Microscopy
ASJC Classification2506 Metals and Alloys
DOIDOI:10.24425/amm.2020.132845
URL http://www.imim.pl/files/archiwum/Vol2_2020/59.pdf
Languageen angielski
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Effect of the powder consolidation method type of the microstructure and selected properties of Al2O3-Cu-Ni composites.pdf 5.21 MB
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 22-06-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.534; WoS Impact Factor: 2018 = 0.697 (2) - 2018=0.72 (5)
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