Detail publikace

Two-Step Sintering and Spark Plasma Sintering of Al2O3, ZrO2 and SrTiO3 Ceramics

MACA, K. POUCHLÝ, V. SHEN, Z.

Originální název

Two-Step Sintering and Spark Plasma Sintering of Al2O3, ZrO2 and SrTiO3 Ceramics

Anglický název

Two-Step Sintering and Spark Plasma Sintering of Al2O3, ZrO2 and SrTiO3 Ceramics

Jazyk

en

Originální abstrakt

The influence of Two Step Sintering and Spark Plasma Sintering processes on the microstructure of three kinds of oxide ceramics was studied. Al2O3 (with initial particle size of 240 nm), ZrO2 (60 nm, stabilized with 3 mol%Y2O3) and SrTiO3 (50 nm) powders were cold isostatically pressed and pressureless sintered with different heating regimes. It was found that the method of TSS does not bring about significant reduction of final grain size in Al2O3 and ZrO2 ceramics, but does reduce the grain size in perovskite SrTiO3 ceramics. Pressureless sintering of SrTiO3 leads only to 95%TD dense ceramics with the minimum grain size of 400 nm. In comparison, by SPS, with an applied uniaxial pressure of 200MPa, SrTiO3 ceramic of 98%TD dense with grain size of 80 nm was prepared.

Anglický abstrakt

The influence of Two Step Sintering and Spark Plasma Sintering processes on the microstructure of three kinds of oxide ceramics was studied. Al2O3 (with initial particle size of 240 nm), ZrO2 (60 nm, stabilized with 3 mol%Y2O3) and SrTiO3 (50 nm) powders were cold isostatically pressed and pressureless sintered with different heating regimes. It was found that the method of TSS does not bring about significant reduction of final grain size in Al2O3 and ZrO2 ceramics, but does reduce the grain size in perovskite SrTiO3 ceramics. Pressureless sintering of SrTiO3 leads only to 95%TD dense ceramics with the minimum grain size of 400 nm. In comparison, by SPS, with an applied uniaxial pressure of 200MPa, SrTiO3 ceramic of 98%TD dense with grain size of 80 nm was prepared.

Dokumenty

BibTex


@article{BUT49013,
  author="Karel {Maca} and Václav {Pouchlý} and Zhijian {Shen}",
  title="Two-Step Sintering and Spark Plasma Sintering of Al2O3, ZrO2 and SrTiO3 Ceramics",
  annote="The influence of Two Step Sintering and Spark Plasma Sintering processes on the
microstructure of three kinds of oxide ceramics was studied. Al2O3 (with initial particle
size of 240 nm), ZrO2 (60 nm, stabilized with 3 mol%Y2O3) and SrTiO3 (50 nm)
powders were cold isostatically pressed and pressureless sintered with different heating
regimes. It was found that the method of TSS does not bring about significant reduction
of final grain size in Al2O3 and ZrO2 ceramics, but does reduce the grain size in
perovskite SrTiO3 ceramics. Pressureless sintering of SrTiO3 leads only to 95%TD
dense ceramics with the minimum grain size of 400 nm. In comparison, by SPS, with
an applied uniaxial pressure of 200MPa, SrTiO3 ceramic of 98%TD dense with grain
size of 80 nm was prepared.",
  chapter="49013",
  journal="INTEGRATED FERROELECTRICS",
  number="1",
  volume="99",
  year="2008",
  month="january",
  pages="114--124",
  type="journal article - other"
}