Publication detail

Effect of Electrophoretic Deposition Conditions on Final Properties of Alumina and Zirconia Deposits

HADRABA, H. DRDLÍK, D. MACA, K.

Original Title

Type

conference proceedings

Language

English

Original Abstract

The electrophoretic deposition of alumina and zirconia powders from the isopropanolic suspension in the presence of monochloracetic acid was studied in the constant-current regime. The new method of deposition kinetics control, based on the direct weight measurement was developed enabling exact control of deposit weight. The different levels of electric current during deposition from 250 microA to 48 mA were used. The green density of deposit depends on the current density and then on the particle velocity during deposition and achieved thevalue from 58% to 61%, according to the electric current used. The lower green density of the deposit was, the larger pores were found in the deposit. The low green density led to low final fired density and subsequently to low Vickers hardness, changing from 2000 HV5 to 1650 HV5, depending on electric current used. Adopting these findings, the microlaminate consisting of alternating 75 layers of alumina and 75 layers of zirconia was prepared.

Keywords

electrophoretic deposition, kinetics of deposition, ceramic micro-laminate

Authors

HADRABA, H.; DRDLÍK, D.; MACA, K.

Released

25. 6. 2009

ISBN

978-83-60958-54-4

Book

Proceedings of the 11th International conference and Exhibition of the European Ceramic Society

Pages from

1072

Pages to

1075

Pages count

BibTex

@proceedings{BUT65737,
  editor="Hynek {Hadraba} and Daniel {Drdlík} and Karel {Maca}",
  title="Effect of Electrophoretic Deposition Conditions on Final Properties of Alumina and Zirconia Deposits",
  year="2009",
  pages="1072--1075",
  isbn="978-83-60958-54-4"
}