Publication detail

Influence of anionic stabilization of alumina particles in 2-propanol medium on the electrophoretic deposition and mechanical properties of deposits

DRDLÍK, D. BARTONÍČKOVÁ, E. HADRABA, H. CIHLÁŘ, J.

Original Title

Influence of anionic stabilization of alumina particles in 2-propanol medium on the electrophoretic deposition and mechanical properties of deposits

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Anionic stabilization; Electric conductivity; Alumina; Electrophoretic deposition

Authors

DRDLÍK, D.; BARTONÍČKOVÁ, E.; HADRABA, H.; CIHLÁŘ, J.

RIV year

2014

Released

3. 11. 2014

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Year of study

2014

Number

34

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3365

Pages to

3371

Pages count

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"
}