Detail publikace

Electrospinning and thermal treatment of yttria doped zirconia fibres

ČÁSTKOVÁ, K. MACA, K. SEKANINOVÁ, J. NEMČOVSKÝ, J. CIHLÁŘ, J.

Originální název

Electrospinning and thermal treatment of yttria doped zirconia fibres

Anglický název

Electrospinning and thermal treatment of yttria doped zirconia fibres

Jazyk

en

Originální abstrakt

As compared to a bulk material, the fibres exhibit novel physical and chemical properties arising from their unique geometric features such as high surface area, surface to volume ratio and small fibre diameter. This paper is focused on the fabrication of nanosized 8 mol% yttria doped zirconia fibres by electrospinning from propoxide/polyvinylpyrrolidonebased precursors and physical-chemical characterization of the ceramic fibres with an energy application potential. Fully crystalline composition of cubic zirconia was detected after fibre heat treatment at 700 °C. The fibre morphology was changed with increasing temperature from flexible nonsintered nanoparticle system at 700 °C through porous nanograin structure at 900 °C and nonporous structure with coarser nanograins at 1100 °C to fragile chain-like fibre structure formed of elongated submicrometer grains at 1300–1450 °C. The densification and grain growth kinetics were described in two stages in the temperature range from 700 °C up to 1450 °C.

Anglický abstrakt

As compared to a bulk material, the fibres exhibit novel physical and chemical properties arising from their unique geometric features such as high surface area, surface to volume ratio and small fibre diameter. This paper is focused on the fabrication of nanosized 8 mol% yttria doped zirconia fibres by electrospinning from propoxide/polyvinylpyrrolidonebased precursors and physical-chemical characterization of the ceramic fibres with an energy application potential. Fully crystalline composition of cubic zirconia was detected after fibre heat treatment at 700 °C. The fibre morphology was changed with increasing temperature from flexible nonsintered nanoparticle system at 700 °C through porous nanograin structure at 900 °C and nonporous structure with coarser nanograins at 1100 °C to fragile chain-like fibre structure formed of elongated submicrometer grains at 1300–1450 °C. The densification and grain growth kinetics were described in two stages in the temperature range from 700 °C up to 1450 °C.

Dokumenty

BibTex


@article{BUT135124,
  author="Klára {Částková} and Karel {Maca} and Jana {Ručková} and Jakub {Nemčovský} and Jaroslav {Cihlář}",
  title="Electrospinning and thermal treatment of yttria doped zirconia fibres",
  annote="As compared to a bulk material, the fibres exhibit novel physical and chemical properties arising from their
unique geometric features such as high surface area, surface to volume ratio and small fibre diameter. This
paper is focused on the fabrication of nanosized 8 mol% yttria doped zirconia fibres by electrospinning from
propoxide/polyvinylpyrrolidonebased precursors and physical-chemical characterization of the ceramic fibres
with an energy application potential. Fully crystalline composition of cubic zirconia was detected after fibre heat
treatment at 700 °C. The fibre morphology was changed with increasing temperature from flexible nonsintered
nanoparticle system at 700 °C through porous nanograin structure at 900 °C and nonporous structure with
coarser nanograins at 1100 °C to fragile chain-like fibre structure formed of elongated submicrometer grains at
1300–1450 °C. The densification and grain growth kinetics were described in two stages in the temperature
range from 700 °C up to 1450 °C.",
  chapter="135124",
  doi="10.1016/j.ceramint.2017.03.050",
  howpublished="print",
  number="10",
  volume="43",
  year="2017",
  month="july",
  pages="7581--7587",
  type="journal article in Web of Science"
}