Stabilization of heavy metal particles in Al2O3-W suspensions

Aleksandra Kędzierska-Sar , Paweł Falkowski , Mikołaj Szafran

Abstract

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 KTCh
Paweł Falkowski,,
- Chair of Chemical Technology
, Mikołaj Szafran KTCh
Mikołaj Szafran,,
- Chair of Chemical Technology
Journal seriesArchives of Metallurgy and Materials, ISSN 1733-3490
Issue year2016
Vol61
No3
Pages1465-1470
Publication size in sheets0.5
Keywords in Englishceramic matrix composites, alumina, tungsten, hetero-flocculation
DOIDOI:10.1515/amm-2016-0240
URL http://www.imim.pl/archives/volume-61-issue-32016
Languageen angielski
File
34.pdf (file archived - login or check accessibility on faculty) 34.pdf 3.2 MB
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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