Detail publikace

Surface roughness improvement of near net shaped alumina by EPD

DRDLÍK, D. CHLUP, Z. HADRABA, H. DRDLÍKOVÁ, K.

Originální název

Surface roughness improvement of near net shaped alumina by EPD

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The high surface roughness of thick and dense alumina deposits prepared by long-term electrophoretic deposition (EPD) caused by surface inhomogeneities could be eliminated by changing the suspension composition or EPD parameters. This work is aimed at the influence of the suspension composition, more precisely on the increase of electrical conductivity through indifferent electrolyte (lithium chloride) addition and its effect on the surface roughness. At first, the electrical conductivity was adjusted by the various amounts of the stabilisers of mono-, di- and trichloroacetic acid in the range of 0.85–21.25 wt%. It was demonstrated that deposits prepared from these suspensions were several millimetres thick, dense with a relatively low surface roughness (Ra ≈ 10 μm) only when the electrical conductivity was higher than 4 μS/cm. If a portion of the stabiliser was replaced with indifferent electrolyte, it resulted in the significantly smoother surface with a roughness Ra ≈ 2 μm preserving all other benefits. Suggested optimization represents a useful novel approach for the preparation of dense, thick and near net-shaped alumina deposits with low surface roughness via EPD.

Klíčová slova

Alumina; Electrophoretic deposition; Electrical conductivity; Surface roughness; Thick layer

Autoři

DRDLÍK, D.; CHLUP, Z.; HADRABA, H.; DRDLÍKOVÁ, K.

Vydáno

13. 5. 2020

Nakladatel

Springer Publishing

Místo

New York, NY

ISSN

2510-1560

Periodikum

Journal of the Australian Ceramic Society

Ročník

56

Číslo

2

Stát

Spojené státy americké

Strany od

721

Strany do

727

Strany počet

7

URL

https://link.springer.com/article/10.1007/s41779-019-00390-y

BibTex

@article{BUT163969,
  author="Daniel {Drdlík} and Zdeněk {Chlup} and Hynek {Hadraba} and Katarina {Drdlíková}",
  title="Surface roughness improvement of near net shaped alumina by EPD",
  journal="Journal of the Australian Ceramic Society",
  year="2020",
  volume="56",
  number="2",
  pages="721--727",
  doi="10.1007/s41779-019-00390-y",
  issn="2510-1560",
  url="https://link.springer.com/article/10.1007/s41779-019-00390-y"
}