QUANTITATIVE DESCRIPTION OF THE SPINEL PHASE (NiAl2O4) LOCATED INTO Al2O3 MATRIX

Justyna Zygmuntowicz , Aleksandra Miazga , Katarzyna Konopka

Abstract

The presented work focuses on the quantitative description of the spinel phase (NiAl2O4) located into Al2O3 matrix. Three series of samples were prepared. Series I, II and III containing following amount of nickel powder: 0.21% vol, 0.43% vol and 1.3% vol respectively. In order to obtain nickel aluminate spinel sintering was carried out in an oxidizing atmosphere (air). Based on the SEM observation and XRD analysis the presence of spinel phase was confirmed in all samples. Difference in volume fraction of the Ni in the compacts before sintering, resulted in the different content of the spinel phase in the final material. All tested composites were characterized by homogeneous distribution of NiAl2O4 in the whole volume of the material. The purpose of the study was also the use the stereological analysis to determine the shape parameters of new phase.
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
Journal seriesArchives of Metallurgy and Materials, ISSN 1733-3490
Issue year2016
Vol61
No2B
Pages953-956
Publication size in sheets0.5
Keywords in Englishnickel aluminate spinel NiAl2O4, SEM, stereological analysis
Languageen angielski
Score (nominal)30
ScoreMinisterial score = 0.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 28-11-2017, ArticleFromJournal
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