Publication detail

Sintering of Ce3+ -doped yttria nanoparticles prepared by precipitation method

Govindan, NP. Najafzadehkhoee, A. Talimian, A. Pouchly, V. Michálková, M. Svancárek, P. Klement, R. Galusek, D.

Original Title

Sintering of Ce3+ -doped yttria nanoparticles prepared by precipitation method

Type

journal article in Web of Science

Language

English

Original Abstract

Cerium doped yttrium oxide nanoparticles with various Ce3+ concentrations between 0.001 and 0.010 at% have been synthesised by precipitation method using ammonium hydroxide as a precipitation agent. The synthesised powders are characterised by a mean particle size of ca. 55 nm. Highly dense specimens, with a relative density>98.8%, were obtained by sintering the green compacts shaped by pressure filtration, at 1550 degree celsius for 3 h in air. The sintering behaviour of Ce3+ doped Y2O3 was studied by constructing Master Sintering Curves (MSC); the results showed that the apparent activation energy of sintering for Ce3+ doped Y2O3 increases with the increase of cerium concentration. The segregation of larger Ce3+ cations in the grain boundaries is likely to be responsible for the increase in the sintering activation energy.

Keywords

Y2O3; Sintering; Master sintering curve; EBSD

Authors

Govindan, NP.; Najafzadehkhoee, A.; Talimian, A.; Pouchly, V.; Michálková, M.; Svancárek, P.; Klement, R.; Galusek, D.

Released

1. 3. 2023

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

2666-5395

Periodical

Open Ceramics

Year of study

13

Number

1

State

Kingdom of the Netherlands

Pages count

7

URL

https://www.sciencedirect.com/science/article/pii/S2666539522000980?via%3Dihub

BibTex

@article{BUT187375,
  author="Govindan, NP. and Najafzadehkhoee, A. and Talimian, A. and Pouchly, V. and Michálková, M. and Svancárek, P. and Klement, R. and Galusek, D.",
  title="Sintering of Ce3+ -doped yttria nanoparticles prepared by precipitation method",
  journal="Open Ceramics",
  year="2023",
  volume="13",
  number="1",
  pages="7",
  doi="10.1016/j.oceram.2022.100315",
  issn="2666-5395",
  url="https://www.sciencedirect.com/science/article/pii/S2666539522000980?via%3Dihub"
}