Publication result detail

Compaction and sintering of bulk zirconia and ceria nanoceramics

TRUNEC, M.; MACA, K.; DOBŠÁK, P.

Original Title

Compaction and sintering of bulk zirconia and ceria nanoceramics

English Title

Compaction and sintering of bulk zirconia and ceria nanoceramics

Type

Paper in proceedings (conference paper)

Original Abstract

Shaping and sintering of bulk nanoceramic bodies were investigated. The results have shown that both shaping techniques, cold isostatic pressing and centrifugation, can be used to prepare almost fully dense (~99% of theoretical density) ceramic bodies provided the nanopowders are only weakly agglomerated and/or are properly dispersed through colloidal processing. Samples sintered at a temperature of 1500 degC did not display any nanocrystalline feature, the grain size ranged from 300 to 400 nm. Relative densities of 95.2% t.d. and 97.9% t.d. were achieved for selected ZrO2 bodies sintered at a temperature of 1100 degC for 4 hours and 1200 degC for 1 hour, respectively. At this temperature a nanocrystalline structure in sintered bodies was retained. The average grain size was 53 and 62 nm for a body sintered at 1100 degC and 1200 degC, respectively.

English abstract

Shaping and sintering of bulk nanoceramic bodies were investigated. The results have shown that both shaping techniques, cold isostatic pressing and centrifugation, can be used to prepare almost fully dense (~99% of theoretical density) ceramic bodies provided the nanopowders are only weakly agglomerated and/or are properly dispersed through colloidal processing. Samples sintered at a temperature of 1500 degC did not display any nanocrystalline feature, the grain size ranged from 300 to 400 nm. Relative densities of 95.2% t.d. and 97.9% t.d. were achieved for selected ZrO2 bodies sintered at a temperature of 1100 degC for 4 hours and 1200 degC for 1 hour, respectively. At this temperature a nanocrystalline structure in sintered bodies was retained. The average grain size was 53 and 62 nm for a body sintered at 1100 degC and 1200 degC, respectively.

Keywords

compaction, sintering, nanoceramics

Key words in English

compaction, sintering, nanoceramics

Authors

TRUNEC, M.; MACA, K.; DOBŠÁK, P.

RIV year

2011

Released

01.01.2003

Publisher

International Community for Composuites Engineering

Location

New Orleans

Book

Tenth annual international conference on composites/nano engineering

Pages from

735

Pages count

2

BibTex

@inproceedings{BUT13311,
  author="Martin {Trunec} and Karel {Maca} and Petr {Dobšák}",
  title="Compaction and sintering of bulk zirconia and ceria nanoceramics",
  booktitle="Tenth annual international conference on composites/nano engineering",
  year="2003",
  number="1",
  pages="2",
  publisher="International Community for Composuites Engineering",
  address="New Orleans"
}