Publication detail

Transparent alumina ceramics: Effect of standard and plasma generated stabilizing approaches in colloidal processing

DRDLÍKOVÁ, K. MACA, K. SLÁMA, M. DRDLÍK, D.

Original Title

Transparent alumina ceramics: Effect of standard and plasma generated stabilizing approaches in colloidal processing

Type

journal article in Web of Science

Language

English

Original Abstract

The study is focused on an optimization of the slip‐casting process used for the fabrication of the transparent/translucent alumina ceramics; more precisely, on specifying the most appropriate way to stabilize the cast alumina suspensions. An innovative method of the particles’ stabilization by plasma treatment was compared with the classical electrostatic and the most frequently used electrosteric approach. Properties of green bodies (pore size distribution, density) and sintered samples (density, mean grain size, real in‐line transmittance) were measured in term to evaluate the impact of the individual stabilization mechanism on the final properties of the transparent/translucent ceramics. The results showed that all tested approaches enable the preparation of the transparent/translucent alumina ceramics by Hot Isostatic Pressing. Ceramics prepared from the plasma treated as well as the electrostatically stabilized powders exhibited narrower pore size distribution, higher density, and lower mean grain size in comparison to ceramics fabricated from only electrosterically stabilized powders. Despite these promising properties the plasma‐treated samples resulted in an unexpectedly low RIT of 36% caused by the presence of thin cracks. However, the electrostatically stabilized samples achieved the highest RIT value of 57%.

Keywords

alumina; dispersants/dispersion, transparent ceramics

Authors

DRDLÍKOVÁ, K.; MACA, K.; SLÁMA, M.; DRDLÍK, D.

Released

4. 10. 2019

Publisher

Wiley

ISBN

1551-2916

Periodical

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

Year of study

102

Number

12

State

United States of America

Pages from

7137

Pages to

7144

Pages count

8

URL

https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/jace.16630

Full text in the Digital Library

http://hdl.handle.net/11012/187724

BibTex

@article{BUT159048,
  author="Katarina {Drdlíková} and Karel {Maca} and Martin {Sláma} and Daniel {Drdlík}",
  title="Transparent alumina ceramics: Effect of standard and plasma generated stabilizing approaches in colloidal processing",
  journal="JOURNAL OF THE AMERICAN CERAMIC SOCIETY",
  year="2019",
  volume="102",
  number="12",
  pages="7137--7144",
  doi="10.1111/jace.16630",
  issn="1551-2916",
  url="https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/jace.16630"
}