Detail publikace

Basic microstructural, mechanical, electrical and optical characterisation of BaTiAl6O12 ceramics

DRDLÍK, D. MAŘÁK, V. KLEMENT, R. TOFEL, P. DRDLÍKOVÁ, K. HADRABA, H. CHLUP, Z.

Originální název

Basic microstructural, mechanical, electrical and optical characterisation of BaTiAl6O12 ceramics

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In progressive particle or layered composites based on a combination of BaTiO3 and Al2O3, serving as e.g. ceramic harvesters, new phases are formed during heat treatment. The dominant one is BaTiAl6O12. This study provides information about the microstructural, mechanical and optical properties of the BaTiAl6O12 ceramics. The evolution of the phases during the solid-state reaction synthesis of the BaTiAl6O12 was monitored. The fully dense samples prepared by Spark Plasma Sintering had indentation Vickers hardness and indentation elastic modulus within ranges of 10.1 – 13.7 GPa and 132.0 – 187.0 GPa, depending on loading force. The three-point bending tests of the BaTiAl6O12 samples resulted in flexural strength of 129.9 MPa and fracture toughness of 1.8 MPa.m1/2.The sample showed blue broad-band emission under UV excitation due to the charge-transfer transition of the Ti4+ and defect sites. The BaTiAl6O12 evinced low permittivity (ε') = 16 and dielectric loss (tan δ) < 0.0003 at a frequency 1 kHz.

Klíčová slova

BaTiAl6O12; Spark Plasma Sintering; microstructure; mechanical properties; luminescence

Autoři

DRDLÍK, D.; MAŘÁK, V.; KLEMENT, R.; TOFEL, P.; DRDLÍKOVÁ, K.; HADRABA, H.; CHLUP, Z.

Vydáno

27. 6. 2024

Nakladatel

Elsevier

ISSN

2173-0431

Periodikum

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO

Ročník

63

Číslo

5

Stát

Nizozemsko

Strany od

368

Strany do

376

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0366317524000189

Plný text v Digitální knihovně

http://hdl.handle.net/11012/249742

BibTex

@article{BUT189575,
  author="Daniel {Drdlík} and Vojtěch {Mařák} and Róbert {Klement} and Pavel {Tofel} and Katarina {Drdlíková} and Hynek {Hadraba} and Zdeněk {Chlup}",
  title="Basic microstructural, mechanical, electrical and optical characterisation of BaTiAl6O12 ceramics",
  journal="BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO",
  year="2024",
  volume="63",
  number="5",
  pages="9",
  doi="10.1016/j.bsecv.2024.06.002",
  issn="2173-0431",
  url="https://www.sciencedirect.com/science/article/pii/S0366317524000189"
}