Publication result detail

Water-assisted cold isostatic pressing to enhance sinterability of alumina ceramics

KERMANI, M.; POUCHLÝ, V.; LIN, Y.; HU, C.; GRASSO, S.

Original Title

Water-assisted cold isostatic pressing to enhance sinterability of alumina ceramics

English Title

Water-assisted cold isostatic pressing to enhance sinterability of alumina ceramics

Type

WoS Article

Original Abstract

Water-Assisted cold isostatic Pressing (WAP) enabled pressure-less sintering of fine grained (0.6 mu m) and nearly full dense (99.3%) weakly translucent alumina ceramics. As a term of comparison, Dry Pressed (DP) samples, prepared under identical processing conditions, maintained an opaque appearance, and their relative density did not exceed 97.7%. The enhanced compaction of WAP allowed to lower the sintering temperature down to 1350 degrees C, which is approximately 100-150 degrees C lower than that of DP powder. WAP samples resulted in an apparent activation energy for sintering (640 kJ/mol) matching literature values, confirming that the enhanced sinterability was attributed to an improved green density rather than a change in sintering mechanisms.

English abstract

Water-Assisted cold isostatic Pressing (WAP) enabled pressure-less sintering of fine grained (0.6 mu m) and nearly full dense (99.3%) weakly translucent alumina ceramics. As a term of comparison, Dry Pressed (DP) samples, prepared under identical processing conditions, maintained an opaque appearance, and their relative density did not exceed 97.7%. The enhanced compaction of WAP allowed to lower the sintering temperature down to 1350 degrees C, which is approximately 100-150 degrees C lower than that of DP powder. WAP samples resulted in an apparent activation energy for sintering (640 kJ/mol) matching literature values, confirming that the enhanced sinterability was attributed to an improved green density rather than a change in sintering mechanisms.

Keywords

alumina; green density; low temperature sintering

Key words in English

alumina; green density; low temperature sintering

Authors

KERMANI, M.; POUCHLÝ, V.; LIN, Y.; HU, C.; GRASSO, S.

RIV year

2022

Released

01.05.2022

Publisher

WILEY

Location

HOBOKEN

ISBN

1744-7402

Periodical

International Journal of Applied Ceramic Technology

Volume

19

Number

3

State

United States of America

Pages from

1249

Pages to

1254

Pages count

6

URL

https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijac.13932

BibTex

@article{BUT174093,
  author="Milad {Kermani} and Václav {Pouchlý} and Yong {Lin} and Chunfeng {Hu} and Salvatore {Grasso}",
  title="Water-assisted cold isostatic pressing to enhance sinterability of alumina ceramics",
  journal="International Journal of Applied Ceramic Technology",
  year="2022",
  volume="19",
  number="3",
  pages="1249--1254",
  doi="10.1111/ijac.13932",
  issn="1546-542X",
  url="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijac.13932"
}