Publication detail

Electrophoretic deposition of alumina and zirconia I. Single-component system

MACA, K. HADRABA, H. CIHLÁŘ, J.

Czech title

Elektroforetická depozice Al2O3 a ZrO2: I. Jednosložkové systémy

English title

Electrophoretic deposition of alumina and zirconia I. Single-component system

Type

journal article - other

Language

en

Original abstract

Electrophoretic deposition of Al2O3 and ZrO2 suspended in isopropanol in the presence of monochloroacetic acid and polyvinylbutyral under constant-current conditions was studied. The deposition of ceramic particles occurred on the anode. An optimum deposition in terms of surface flatness, deposit density and thickness was found for 15 wt.% of monochloroacetic acid in isopropanol. The electrophoretic mobility of alumina particles in this suspension was determined from deposition kinetics. The sintering behaviour, hardness, fracture toughness and bending strength of Al2O3 and ZrO2 electrophoretic deposits were comparable with the values measured for the specimens prepared from identical powders by injection moulding and cold isostatic pressing or with the values given in the literature.

Czech abstract

Byla studována elektroforetická depozice suspenzí Al2O3 a ZrO2 v isopropanolu v přítomnosti kyseliny monochloroctové a polyvinylbutyralu v uspořádání s konstantním proudem. K depozici částic docházelo na anodě. Optimální depozice z hlediska rovinnosti povrchu, hustoty depozitů a tloušťky depozitů byla zjištěna při obsahu 15hm.% kyseliny monochloroctové v isopropanolu. Sedimentaci suspenze, vedoucí k nekonstantní tloušťce depozitů, bylo zabráněno pravidelným mícháním suspenze.

English abstract

Electrophoretic deposition of Al2O3 and ZrO2 suspended in isopropanol in the presence of monochloroacetic acid and polyvinylbutyral under constant-current conditions was studied. The deposition of ceramic particles occurred on the anode. An optimum deposition in terms of surface flatness, deposit density and thickness was found for 15 wt.% of monochloroacetic acid in isopropanol. The electrophoretic mobility of alumina particles in this suspension was determined from deposition kinetics. The sintering behaviour, hardness, fracture toughness and bending strength of Al2O3 and ZrO2 electrophoretic deposits were comparable with the values measured for the specimens prepared from identical powders by injection moulding and cold isostatic pressing or with the values given in the literature.

Keywords in English

Electrophoretic deposition, composites, Al2O3, ZrO2

RIV year

2004

Released

01.01.2004

Publisher

Elsevier

ISSN

0272-8842

Journal

Ceramics International

Volume

30

Number

6

Pages count

10

BIBTEX


@article{BUT42184,
  author="Karel {Maca} and Hynek {Hadraba} and Jaroslav {Cihlář},
  title="Electrophoretic deposition of alumina and zirconia I. Single-component system",
  journal="Ceramics International",
  year="2004",
  volume="30",
  number="6",
  month="January",
  publisher="Elsevier",
  issn="0272-8842"
}