Al2O3-Ni composites produced with various rotational speed
Justyna Zygmuntowicz , Aleksandra Miazga , Katarzyna Konopka , Waldemar Kaszuwara
AbstractThe 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.
|Journal series||Journal of Engineering, ISSN 2314-4904|
|Publication size in sheets||0.5|
|Keywords in English||Al2O3-Ni composites, FGMs, centrifugal slip casting|
|Score|| = 0.0, 28-11-2017, ArticleFromJournal|
= 5.0, 28-11-2017, ArticleFromJournal - czasopismo zagraniczne spoza list
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