Microstructure development during sintering of nanocrystalline tetragonal zirconia

A.J.A. Winnubst; G.S.A.M. Theunissen; M.M.R. Boutz; A.J. Burggraaf

Microstructure development during sintering of nanocrystalline tetragonal zirconia

A.J.A. Winnubst^*
, G.S.A.M. Theunissen
, M.M.R. Boutz
, A.J. Burggraaf

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2 Citations (Scopus)

Abstract

Grain growth and densification is described during pressureless sintering of nanocrystalline tetragonal zirconia compacts, doped with various amounts of yttria and/or ceria. All powders have a crystalline size of 8 nm and show an identical aggregate and agglomerate structure. During non-isothermal sintering up to 1050°C no significant difference in grain growth and densification is observed. Isothermal sintering for 6 hours at 1050°C of yttria doped tetragonal zirconia results in a dense ceramic with a grain size of 60 nm. At temperatures ≥ 1050°C ceria doped zirconia shows a stronger grain growth and a lower densification rate if compared with yttria doped zirconia. The effect of dopant on grain growth at higher temperatures is explained in terms of a difference in segregation behaviour of the solute atoms and consequently a difference in grain boundary migration due to 'drag control'.

Original language	English
Title of host publication	Structural Ceramics Processing, Microstucture and Properties
Subtitle of host publication	proceedings of the 11th Risø International Symposium on Metallurgy and Materials Science, 3-7 September 1990
Editors	J.J. Bentzen
Place of Publication	Roskilde, Denmark
Publisher	Risø National Laboratory
Pages	523-528
Number of pages	6
ISBN (Print)	8755016626
Publication status	Published - 1990
Event	11th Risø International Symposium on Metallurgy and Materials Science 1990 - Roskilde, Denmark Duration: 3 Sept 1990 → 7 Sept 1990 Conference number: 11

Publication series

Name	Proceedings of the Risø International Symposium on Metallurgy and Materials Science
Publisher	Risø National Laboratory
Volume	11
ISSN (Print)	0108-8599

Conference

Conference	11th Risø International Symposium on Metallurgy and Materials Science 1990
Country/Territory	Denmark
City	Roskilde
Period	3/09/90 → 7/09/90

Cite this

Winnubst, A. J. A., Theunissen, G. S. A. M., Boutz, M. M. R., & Burggraaf, A. J. (1990). Microstructure development during sintering of nanocrystalline tetragonal zirconia. In J. J. Bentzen (Ed.), Structural Ceramics Processing, Microstucture and Properties: proceedings of the 11th Risø International Symposium on Metallurgy and Materials Science, 3-7 September 1990 (pp. 523-528). (Proceedings of the Risø International Symposium on Metallurgy and Materials Science; Vol. 11). Risø National Laboratory.

Winnubst, A.J.A. ; Theunissen, G.S.A.M. ; Boutz, M.M.R. et al. / Microstructure development during sintering of nanocrystalline tetragonal zirconia. Structural Ceramics Processing, Microstucture and Properties: proceedings of the 11th Risø International Symposium on Metallurgy and Materials Science, 3-7 September 1990. editor / J.J. Bentzen. Roskilde, Denmark : Risø National Laboratory, 1990. pp. 523-528 (Proceedings of the Risø International Symposium on Metallurgy and Materials Science).

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title = "Microstructure development during sintering of nanocrystalline tetragonal zirconia",

abstract = "Grain growth and densification is described during pressureless sintering of nanocrystalline tetragonal zirconia compacts, doped with various amounts of yttria and/or ceria. All powders have a crystalline size of 8 nm and show an identical aggregate and agglomerate structure. During non-isothermal sintering up to 1050°C no significant difference in grain growth and densification is observed. Isothermal sintering for 6 hours at 1050°C of yttria doped tetragonal zirconia results in a dense ceramic with a grain size of 60 nm. At temperatures ≥ 1050°C ceria doped zirconia shows a stronger grain growth and a lower densification rate if compared with yttria doped zirconia. The effect of dopant on grain growth at higher temperatures is explained in terms of a difference in segregation behaviour of the solute atoms and consequently a difference in grain boundary migration due to 'drag control'.",

author = "A.J.A. Winnubst and G.S.A.M. Theunissen and M.M.R. Boutz and A.J. Burggraaf",

year = "1990",

language = "English",

isbn = "8755016626",

series = "Proceedings of the Ris{\o} International Symposium on Metallurgy and Materials Science",

publisher = "Ris{\o} National Laboratory",

pages = "523--528",

editor = "J.J. Bentzen",

booktitle = "Structural Ceramics Processing, Microstucture and Properties",

address = "Denmark",

note = "11th Ris{\o} International Symposium on Metallurgy and Materials Science 1990 ; Conference date: 03-09-1990 Through 07-09-1990",

}

Winnubst, AJA, Theunissen, GSAM, Boutz, MMR & Burggraaf, AJ 1990, Microstructure development during sintering of nanocrystalline tetragonal zirconia. in JJ Bentzen (ed.), Structural Ceramics Processing, Microstucture and Properties: proceedings of the 11th Risø International Symposium on Metallurgy and Materials Science, 3-7 September 1990. Proceedings of the Risø International Symposium on Metallurgy and Materials Science, vol. 11, Risø National Laboratory, Roskilde, Denmark, pp. 523-528, 11th Risø International Symposium on Metallurgy and Materials Science 1990, Roskilde, Denmark, 3/09/90.

Microstructure development during sintering of nanocrystalline tetragonal zirconia. / Winnubst, A.J.A.; Theunissen, G.S.A.M.; Boutz, M.M.R. et al.
Structural Ceramics Processing, Microstucture and Properties: proceedings of the 11th Risø International Symposium on Metallurgy and Materials Science, 3-7 September 1990. ed. / J.J. Bentzen. Roskilde, Denmark: Risø National Laboratory, 1990. p. 523-528 (Proceedings of the Risø International Symposium on Metallurgy and Materials Science; Vol. 11).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Microstructure development during sintering of nanocrystalline tetragonal zirconia

AU - Winnubst, A.J.A.

AU - Theunissen, G.S.A.M.

AU - Boutz, M.M.R.

AU - Burggraaf, A.J.

N1 - Conference code: 11

PY - 1990

Y1 - 1990

N2 - Grain growth and densification is described during pressureless sintering of nanocrystalline tetragonal zirconia compacts, doped with various amounts of yttria and/or ceria. All powders have a crystalline size of 8 nm and show an identical aggregate and agglomerate structure. During non-isothermal sintering up to 1050°C no significant difference in grain growth and densification is observed. Isothermal sintering for 6 hours at 1050°C of yttria doped tetragonal zirconia results in a dense ceramic with a grain size of 60 nm. At temperatures ≥ 1050°C ceria doped zirconia shows a stronger grain growth and a lower densification rate if compared with yttria doped zirconia. The effect of dopant on grain growth at higher temperatures is explained in terms of a difference in segregation behaviour of the solute atoms and consequently a difference in grain boundary migration due to 'drag control'.

AB - Grain growth and densification is described during pressureless sintering of nanocrystalline tetragonal zirconia compacts, doped with various amounts of yttria and/or ceria. All powders have a crystalline size of 8 nm and show an identical aggregate and agglomerate structure. During non-isothermal sintering up to 1050°C no significant difference in grain growth and densification is observed. Isothermal sintering for 6 hours at 1050°C of yttria doped tetragonal zirconia results in a dense ceramic with a grain size of 60 nm. At temperatures ≥ 1050°C ceria doped zirconia shows a stronger grain growth and a lower densification rate if compared with yttria doped zirconia. The effect of dopant on grain growth at higher temperatures is explained in terms of a difference in segregation behaviour of the solute atoms and consequently a difference in grain boundary migration due to 'drag control'.

UR - https://www.scopus.com/pages/publications/0025549338

M3 - Conference contribution

AN - SCOPUS:0025549338

SN - 8755016626

T3 - Proceedings of the Risø International Symposium on Metallurgy and Materials Science

SP - 523

EP - 528

BT - Structural Ceramics Processing, Microstucture and Properties

A2 - Bentzen, J.J.

PB - Risø National Laboratory

CY - Roskilde, Denmark

T2 - 11th Risø International Symposium on Metallurgy and Materials Science 1990

Y2 - 3 September 1990 through 7 September 1990

ER -

Winnubst AJA, Theunissen GSAM, Boutz MMR, Burggraaf AJ. Microstructure development during sintering of nanocrystalline tetragonal zirconia. In Bentzen JJ, editor, Structural Ceramics Processing, Microstucture and Properties: proceedings of the 11th Risø International Symposium on Metallurgy and Materials Science, 3-7 September 1990. Roskilde, Denmark: Risø National Laboratory. 1990. p. 523-528. (Proceedings of the Risø International Symposium on Metallurgy and Materials Science).

Microstructure development during sintering of nanocrystalline tetragonal zirconia

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