Detail publikace

Kinetika slinování ZrO2 nanokeramiky

MACA, K. TRUNEC, M.

Český název

Kinetika slinování ZrO2 nanokeramiky

Anglický název

Sintering kinetics of zirconia nanoparticle compacts

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

Sintering kinetics of yttria-stabilized zirconia nanoceramics was studied by means of high-temperature dilatometry and mercury intrusion porosimetry. Green bodies were prepared by cold isostatic pressing of zirconia nanopowders with particle size 10 nm. Pressureless sintering of these bodies at 1100C resulted in the final relative density of 99% of theoretical density, and a grain size of ca. 80 nm. The influence of particle size and of pore size distribution of powder compacts on sintering behaviour was also discussed. The sintering temperature and sintering activation energy of nanoceramics was lower than that of conventional submicrometre-sized zirconia ceramics.

Český abstrakt

Kinetika slinování ZrO2 (stabilizované Y2O3) nanokeramiky byla studována pomocí vysokoteplotní dilatometrie a rtuťové porozimetrie. Tělesa byla připravena izostatickým lisováním nanoprášků o velikosti částic 10nm. Tělesa dosáhla po beztlakém slinování při teplotě 1100C relativní hustoty vyšší než 99% a velikosti zrn asi 80nm. Slinovací teplota i aktivační energie nanokeramiky byla nižší než u konvenkční keramiky.

Anglický abstrakt

Sintering kinetics of yttria-stabilized zirconia nanoceramics was studied by means of high-temperature dilatometry and mercury intrusion porosimetry. Green bodies were prepared by cold isostatic pressing of zirconia nanopowders with particle size 10 nm. Pressureless sintering of these bodies at 1100C resulted in the final relative density of 99% of theoretical density, and a grain size of ca. 80 nm. The influence of particle size and of pore size distribution of powder compacts on sintering behaviour was also discussed. The sintering temperature and sintering activation energy of nanoceramics was lower than that of conventional submicrometre-sized zirconia ceramics.

Klíčová slova anglicky

sintering kinetics, zirconia, nanoceramics

Rok RIV

2005

Vydáno

01.01.2005

Nakladatel

INP Grenoble

Místo

Grenoble

Kniha

Sintering 95

Strany od–do

29–32

Počet stran

4

BIBTEX


@inproceedings{BUT18386,
  author="Karel {Maca} and Martin {Trunec},
  title="Sintering kinetics of zirconia nanoparticle compacts",
  booktitle="Sintering 95",
  year="2005",
  month="January",
  pages="29--32",
  publisher="INP Grenoble",
  address="Grenoble"
}