Stabilization of heavy metal particles in Al2O3-W suspensions

Aleksandra Kędzierska-Sar , Paweł Falkowski , Mikołaj Szafran


Ceramic – metal composites are widely used materials in a whole world. There were invented many fabrication methods for those kind of materials, but still exists some problems which need to be fixed. Stability of high density metal particles (e.g. W, Mo, Nb) in ceramic-metal composite suspensions is one of crucial issues to be solved in order to obtain homogenous composite material with desired properties such as high fracture toughness, mechanical strength, hardness, wear resistance. In this paper, results of two different methods of stabilizing W particles in Al2O3 – W – H2O system were compared. The zeta potential by laser doppler electrophoresis, stability by static multiple light scattering and rheological behavior of prepared suspensions were analyzed. As a result application of hetero-flocculation effect was consider as a good way to obtain homogeneous dispersion of metal particles with a high density.
Author Aleksandra Kędzierska-Sar
Aleksandra Kędzierska-Sar,,
, Paweł Falkowski (FC / CChT)
Paweł Falkowski,,
- Chair of Chemical Technology
, Mikołaj Szafran (FC / CChT)
Mikołaj Szafran,,
- Chair of Chemical Technology
Journal seriesArchives of Metallurgy and Materials, ISSN 1733-3490
Issue year2016
Publication size in sheets0.5
Keywords in Englishceramic matrix composites, alumina, tungsten, hetero-flocculation
ASJC Classification2506 Metals and Alloys
Languageen angielski
34.pdf 3.2 MB
Score (nominal)30
Score sourcejournalList
ScoreMinisterial score = 0.0, 02-02-2020, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 02-02-2020, ArticleFromJournal
Publication indicators Scopus Citations = 2; WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.804; WoS Impact Factor: 2016 = 0.571 (2) - 2016=0.776 (5)
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