Detail publikace

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

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

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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%.

Klíčová slova

alumina; dispersants/dispersion, transparent ceramics

Autoři

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

Vydáno

4. 10. 2019

Nakladatel

Wiley

ISSN

1551-2916

Periodikum

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

Ročník

102

Číslo

12

Stát

Spojené státy americké

Strany od

7137

Strany do

7144

Strany počet

8

URL

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

Plný text v Digitální knihovně

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"
}