Detail publikace

Sintering activation energies of anisotropic layered and particle alumina/zirconia-based composites and their mechanical response

DRDLÍK, D. SOKOLOV, I. HADRABA, H. CHLUP, Z. DRDLÍKOVÁ, K. MACA, K.

Originální název

Sintering activation energies of anisotropic layered and particle alumina/zirconia-based composites and their mechanical response

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Information on the sintering activation energy is currently focused on evaluation of single-phase ceramic systems. This work shows the results of high-temperature dilatometry measurements of layered and particle composites based on alumina and zirconia. Layered composites with different layer thickness ratios and particle composites with variable composition in the entire concentration range were prepared by electrophoretic deposition allowing manufacturing composites with precious design and strongly bonded interfaces. The phenomena observed during the high-temperature dilatometry measurements are discussed, and the data were used to calculate the sintering activation energies of composites using the modified Master Sintering Curve concept. By covering a wide range of composite designs, it was possible to determine differences in activation energies and to show their dependence on the direction in the case of laminate composites given by the directionally dependent sintering behaviour. Sintering activation energies of layered composites were always higher than for monoliths due to constrained sintering showing maximum sintering activation energies at lower volumes of zirconia in the layers for longitudinal and transversal orientation of the samples. A similar trend was identified in particle composites due to slowed down alumina densification by the pinning effect. Additionally, mechanical properties represented by Vickers hardness and indentation elastic modulus were related to the microstructure developed during sintering. The effects of interconnectivity of phases present in the composites together with other parameters of the microstructure were described.

Klíčová slova

Sintering; activation energy; high-temperature dilatometry; laminate; particle composite

Autoři

DRDLÍK, D.; SOKOLOV, I.; HADRABA, H.; CHLUP, Z.; DRDLÍKOVÁ, K.; MACA, K.

Vydáno

27. 8. 2024

ISSN

1873-3956

Periodikum

CERAMICS INTERNATIONAL

Ročník

50

Číslo

19

Stát

Spojené království Velké Británie a Severního Irska

Strany od

37430

Strany do

37440

Strany počet

11

URL

https://www.sciencedirect.com/science/article/pii/S0272884224016602?via%3Dihub

BibTex

@article{BUT188509,
  author="Daniel {Drdlík} and Ilya {Sokolov} and Hynek {Hadraba} and Zdeněk {Chlup} and Katarina {Drdlíková} and Karel {Maca}",
  title="Sintering activation energies of anisotropic layered and particle alumina/zirconia-based composites and their mechanical response",
  journal="CERAMICS INTERNATIONAL",
  year="2024",
  volume="50",
  number="19",
  pages="37430--37440",
  doi="10.1016/j.ceramint.2024.04.263",
  issn="1873-3956",
  url="https://www.sciencedirect.com/science/article/pii/S0272884224016602?via%3Dihub"
}