Stabilization of heavy metal particles in Al2O3-W suspensions

• Autorzy: Kędzierska-Sar A. , Falkowski P. , Szafran M.

Identyfikatory

DOI

DOI: 10.1515/amm-2016-0240

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

ceramic matrix composites; alumina; tungsten; hetero-flocculation

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2016
• Tom: Vol. 61, iss. 3
• Strony: 1465--1470
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr., wzory

Twórcy

autor

Kędzierska-Sar A.

• Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
• Institute of High Pressure Physics, Polish Academy Of Science, Warsaw, Poland

autor

Falkowski P.

• Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland

autor

Szafran M.

• Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland

Bibliografia

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Uwagi

EN

This work was supported by the Polish National Centre of the Science (NCN) under Grant No. 2014/13/N/ST5/03438. Stability measurements wras done with use of equipment from Laboratory of Nanostructures for Photonics and Nanomedicine, IHPP PAS, Warsaw, Poland