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DRDLÍK, D.; BARTONÍČKOVÁ, E.; HADRABA, H.; CIHLÁŘ, J.
Originální název
Influence of anionic stabilization of alumina particles in 2-propanol medium on the electrophoretic deposition and mechanical properties of deposits
Anglický název
Druh
Článek WoS
Originální abstrakt
The ceramic dispersions were prepared using 0.85, 1.70, 4.25, 12.75 or 21.25 wt.% of monochloroacetic, dichloroacetic or trichoroacetic acid, 15 wt.% alumina and 2-propanol. The mechanism of anionic stabilization in 2-propanolic media was described. Alumina green bodies were prepared from the stable dispersion via electrophoretic deposition (EPD). It was found that increasing dispersion conductivity significantly influenced the EPD yields. The most effective electrophoretic depositions were performed from dispersions with conductivity in range 4.0-5.3 10-4 S m-1. Deposits with the highest green density were prepared from the dispersion stabilized by trichloroacetic acid. This behavior was explained by low voltage drop during deposition. The surface roughness was high at low dispersion conductivity and with increasing acid concentration in dispersion the surface of deposits was smoother. The mechanism of particle arrangement in deposit was discussed. Influence of stabilizer amount in the dispersion on the hardness and fracture toughness was described.
Anglický abstrakt
Klíčová slova
Anionic stabilization; Electric conductivity; Alumina; Electrophoretic deposition
Klíčová slova v angličtině
Autoři
Rok RIV
2017
Vydáno
03.11.2014
ISSN
0955-2219
Periodikum
Journal of the European Ceramic Society
Svazek
2014
Číslo
34
Stát
Spojené království Velké Británie a Severního Irska
Strany od
3365
Strany do
3371
Strany počet
7
BibTex
@article{BUT108556, author="Daniel {Drdlík} and Eva {Bartoníčková} and Hynek {Hadraba} and Jaroslav {Cihlář}", title="Influence of anionic stabilization of alumina particles in 2-propanol medium on the electrophoretic deposition and mechanical properties of deposits", journal="Journal of the European Ceramic Society", year="2014", volume="2014", number="34", pages="3365--3371", doi="10.1016/j.jeurceramsoc.2014.04.038", issn="0955-2219" }