Detail publikace

Compaction and Pressureless Sintering of Zirconia Nanoparticles

TRUNEC, M. MACA, K.

Originální název

Compaction and Pressureless Sintering of Zirconia Nanoparticles

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Four nanometer-sized zirconia powders stabilized by 3 mol% Y2O3 were used for the preparation of dense bulk ceramics. Ceramic green bodies were prepared by cold isostatic pressing at pressures of 300-1000 MPa. The size of pores in ceramic green bodies and their evolution during sintering were correlated with the characteristics of individual nanopowders and with the sintering behavior of powder compacts. Only homogeneous green bodies with pores of less than 10 nm could be sintered into dense bodies (>99% t.d.) at sufficiently low temperature to keep the grain sizes in a range <100 nm. Powder with uniform particles of 10 nm in size yielded green bodies of required microstructure. These nanoparticle compacts were sintered without pressure to give bodies (diameter 20 mm, thickness 4 mm) with a relative density higher than 99% and a grain size of about 85 nm (as determined by linear intercept method).

Klíčová slova

zirconia, nanoparticlulates, green bodies,pores, porosity, sintering,

Autoři

TRUNEC, M.; MACA, K.

Rok RIV

2007

Vydáno

1. 1. 2007

Nakladatel

Blackwell Publishing

Místo

USA

ISSN

0002-7820

Periodikum

Journal of the American Ceramic Society

Ročník

90

Číslo

9

Stát

Spojené státy americké

Strany od

2735

Strany do

2740

Strany počet

6

BibTex

@article{BUT44094,
  author="Martin {Trunec} and Karel {Maca}",
  title="Compaction and Pressureless Sintering of Zirconia Nanoparticles",
  journal="Journal of the American Ceramic Society",
  year="2007",
  volume="90",
  number="9",
  pages="2735--2740",
  issn="0002-7820"
}