Al2O3-Ni composites produced with various rotational speed

Justyna Zygmuntowicz , Aleksandra Miazga , Katarzyna Konopka , Waldemar Kaszuwara

Abstract

The recent years have seen the increasing practical interest in functionally graded materials (FGM), e.g. ceramic-metal composites, such as Al2O3-Ni. In the present study these composites were fabricated by the centrifugal slip casting method. The principal aim was to evaluate the influence of the centrifugal rotational speed on the microstructure and properties of the alumina-nickel composites. The slurries with the 55 vol.% solid content were consolidated using two rotational speeds (800 rpm and 1800 rpm). The composites obtained were characterized by macro and microstructural examination (XRD, SEM, EDS and stereological analysis). The hardness of the sinters was measured and compared. The graded distribution of the Ni particles in the Al2O3-Ni FGM ceramic matrix composites were only obtained at the centrifuge rotational speed of 1800 rpm. With the lower rotational speed of 800 rpm no gradient was achieved.
Author Justyna Zygmuntowicz ZMCP
Justyna Zygmuntowicz,,
- Division of Ceramic Materials and Polymers
, Aleksandra Miazga ZMCP
Aleksandra Miazga,,
- Division of Ceramic Materials and Polymers
, Katarzyna Konopka ZMCP
Katarzyna Konopka,,
- Division of Ceramic Materials and Polymers
, Waldemar Kaszuwara ZMKF
Waldemar Kaszuwara,,
- Division of Construction and Functional Materials
Journal seriesJournal of Engineering, ISSN 2314-4904
Issue year2016
Vol6
No9
Pages 12-19
Publication size in sheets0.5
Keywords in EnglishAl2O3-Ni composites, FGMs, centrifugal slip casting
Languageen angielski
Score (nominal)5
ScoreMinisterial score = 0.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 5.0, 28-11-2017, ArticleFromJournal - czasopismo zagraniczne spoza list
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