Detail publikace

Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping

DRDLÍK, D. DRDLÍKOVÁ, K. HADRABA, H. MACA, K.

Originální název

Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping

Anglický název

Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping

Jazyk

en

Originální abstrakt

Alumina ceramics found their utilisation in many applications which can be further extend by attaining functional properties; in our case the transparency obtained through precise processing and photoluminescence due to erbium (Er) doping. In order to examine the optical, mechanical and fractographic response of transparent alumina on Er doping, slip casted samples containing 0–0.15 at.% of erbium nano-oxide were pre-sintered by two-step sintering regime and then hot isostatically pressed. Prepared samples exhibited fully dense submicron microstructure and corresponding high transparency (RIT up to 60%). Positive influence of doping on the Vickers hardness resulted in values up to 27 GPa (at 10 N load). Moreover, the comparison of the Vickers hardness determined at different loadings with literature data showed that the Er doped alumina is one of the hardest material in this category. The samples were characterised also in terms of fracture toughness and fractographic behaviour.

Anglický abstrakt

Alumina ceramics found their utilisation in many applications which can be further extend by attaining functional properties; in our case the transparency obtained through precise processing and photoluminescence due to erbium (Er) doping. In order to examine the optical, mechanical and fractographic response of transparent alumina on Er doping, slip casted samples containing 0–0.15 at.% of erbium nano-oxide were pre-sintered by two-step sintering regime and then hot isostatically pressed. Prepared samples exhibited fully dense submicron microstructure and corresponding high transparency (RIT up to 60%). Positive influence of doping on the Vickers hardness resulted in values up to 27 GPa (at 10 N load). Moreover, the comparison of the Vickers hardness determined at different loadings with literature data showed that the Er doped alumina is one of the hardest material in this category. The samples were characterised also in terms of fracture toughness and fractographic behaviour.

Plný text v Digitální knihovně

Dokumenty

BibTex


@article{BUT138891,
  author="Daniel {Drdlík} and Katarina {Drdlíková} and Hynek {Hadraba} and Karel {Maca}",
  title="Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping",
  annote="Alumina ceramics found their utilisation in many applications which can be further extend by attaining functional properties; in our case the transparency obtained through precise processing and photoluminescence due to erbium (Er) doping. In order to examine the optical, mechanical and fractographic
response of transparent alumina on Er doping, slip casted samples containing 0–0.15 at.% of erbium
nano-oxide were pre-sintered by two-step sintering regime and then hot isostatically pressed. Prepared
samples exhibited fully dense submicron microstructure and corresponding high transparency (RIT up
to 60%). Positive influence of doping on the Vickers hardness resulted in values up to 27 GPa (at 10 N
load). Moreover, the comparison of the Vickers hardness determined at different loadings with literature
data showed that the Er doped alumina is one of the hardest material in this category. The samples were
characterised also in terms of fracture toughness and fractographic behaviour.",
  address="Elsevier",
  chapter="138891",
  doi="10.1016/j.jeurceramsoc.2017.02.043",
  howpublished="print",
  institution="Elsevier",
  number="14",
  volume="37",
  year="2017",
  month="november",
  pages="4265--4270",
  publisher="Elsevier",
  type="journal article in Web of Science"
}