Powder preparation and compaction behaviour of fine-grained Y-TZP

W.F.M. Groot Zevert, Aloysius J.A. Winnubst, G.S.A.M. Theunissen, A.J. Burggraaf

Research output: Contribution to journalArticleAcademic

104 Citations (Scopus)
89 Downloads (Pure)

Abstract

Two wet chemical preparation methods are described for yttria-doped tetragonal zirconia powders. Both methods yield powders with an extremely small crystallite size (8 nm) and a narrow size distribution. The agglomerate and aggregate structure of these powders have been investigated by several techniques. Gel precipitation from an alkoxide solution in water (ldquoalkoxiderdquo synthesis) results in a ceramic powder with irregular-shaped weak and porous agglomerates, which are built up from dense aggregates with a size of 18 nm. Gel precipitates formed from a metal-chloride solution in ammonia (ldquochloriderdquo synthesis) do not contain aggregates. Both types of agglomerate are fractured during isostatic compaction. Hydrolysis and washing under (strong) basic conditions probably decrease the degree of aggregation. The aggregate morphology and structure are key parameters in the microstructure development during sintering of a ceramic. Several characteristics of these powders are compared with those of a commerical one (Toyo Soda TZ3Y).
Original languageUndefined
Pages (from-to)3449-3455
JournalJournal of materials science
Volume25
Issue number8
DOIs
Publication statusPublished - 1990

Keywords

  • IR-61548

Cite this

Groot Zevert, W. F. M., Winnubst, A. J. A., Theunissen, G. S. A. M., & Burggraaf, A. J. (1990). Powder preparation and compaction behaviour of fine-grained Y-TZP. Journal of materials science, 25(8), 3449-3455. https://doi.org/10.1007/BF00575369
Groot Zevert, W.F.M. ; Winnubst, Aloysius J.A. ; Theunissen, G.S.A.M. ; Burggraaf, A.J. / Powder preparation and compaction behaviour of fine-grained Y-TZP. In: Journal of materials science. 1990 ; Vol. 25, No. 8. pp. 3449-3455.
@article{249cf776ad0c4afe90c9c062111fbf63,
title = "Powder preparation and compaction behaviour of fine-grained Y-TZP",
abstract = "Two wet chemical preparation methods are described for yttria-doped tetragonal zirconia powders. Both methods yield powders with an extremely small crystallite size (8 nm) and a narrow size distribution. The agglomerate and aggregate structure of these powders have been investigated by several techniques. Gel precipitation from an alkoxide solution in water (ldquoalkoxiderdquo synthesis) results in a ceramic powder with irregular-shaped weak and porous agglomerates, which are built up from dense aggregates with a size of 18 nm. Gel precipitates formed from a metal-chloride solution in ammonia (ldquochloriderdquo synthesis) do not contain aggregates. Both types of agglomerate are fractured during isostatic compaction. Hydrolysis and washing under (strong) basic conditions probably decrease the degree of aggregation. The aggregate morphology and structure are key parameters in the microstructure development during sintering of a ceramic. Several characteristics of these powders are compared with those of a commerical one (Toyo Soda TZ3Y).",
keywords = "IR-61548",
author = "{Groot Zevert}, W.F.M. and Winnubst, {Aloysius J.A.} and G.S.A.M. Theunissen and A.J. Burggraaf",
year = "1990",
doi = "10.1007/BF00575369",
language = "Undefined",
volume = "25",
pages = "3449--3455",
journal = "Journal of materials science",
issn = "0022-2461",
publisher = "Springer",
number = "8",

}

Groot Zevert, WFM, Winnubst, AJA, Theunissen, GSAM & Burggraaf, AJ 1990, 'Powder preparation and compaction behaviour of fine-grained Y-TZP', Journal of materials science, vol. 25, no. 8, pp. 3449-3455. https://doi.org/10.1007/BF00575369

Powder preparation and compaction behaviour of fine-grained Y-TZP. / Groot Zevert, W.F.M.; Winnubst, Aloysius J.A.; Theunissen, G.S.A.M.; Burggraaf, A.J.

In: Journal of materials science, Vol. 25, No. 8, 1990, p. 3449-3455.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Powder preparation and compaction behaviour of fine-grained Y-TZP

AU - Groot Zevert, W.F.M.

AU - Winnubst, Aloysius J.A.

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

AU - Burggraaf, A.J.

PY - 1990

Y1 - 1990

N2 - Two wet chemical preparation methods are described for yttria-doped tetragonal zirconia powders. Both methods yield powders with an extremely small crystallite size (8 nm) and a narrow size distribution. The agglomerate and aggregate structure of these powders have been investigated by several techniques. Gel precipitation from an alkoxide solution in water (ldquoalkoxiderdquo synthesis) results in a ceramic powder with irregular-shaped weak and porous agglomerates, which are built up from dense aggregates with a size of 18 nm. Gel precipitates formed from a metal-chloride solution in ammonia (ldquochloriderdquo synthesis) do not contain aggregates. Both types of agglomerate are fractured during isostatic compaction. Hydrolysis and washing under (strong) basic conditions probably decrease the degree of aggregation. The aggregate morphology and structure are key parameters in the microstructure development during sintering of a ceramic. Several characteristics of these powders are compared with those of a commerical one (Toyo Soda TZ3Y).

AB - Two wet chemical preparation methods are described for yttria-doped tetragonal zirconia powders. Both methods yield powders with an extremely small crystallite size (8 nm) and a narrow size distribution. The agglomerate and aggregate structure of these powders have been investigated by several techniques. Gel precipitation from an alkoxide solution in water (ldquoalkoxiderdquo synthesis) results in a ceramic powder with irregular-shaped weak and porous agglomerates, which are built up from dense aggregates with a size of 18 nm. Gel precipitates formed from a metal-chloride solution in ammonia (ldquochloriderdquo synthesis) do not contain aggregates. Both types of agglomerate are fractured during isostatic compaction. Hydrolysis and washing under (strong) basic conditions probably decrease the degree of aggregation. The aggregate morphology and structure are key parameters in the microstructure development during sintering of a ceramic. Several characteristics of these powders are compared with those of a commerical one (Toyo Soda TZ3Y).

KW - IR-61548

U2 - 10.1007/BF00575369

DO - 10.1007/BF00575369

M3 - Article

VL - 25

SP - 3449

EP - 3455

JO - Journal of materials science

JF - Journal of materials science

SN - 0022-2461

IS - 8

ER -