Effect of manganese oxide on the sinterability of 8 mol% yttria-stabilized zirconia

F. D. Chong, C. Y. Tan, R. Singh, A. Muchtar, M. R. Somalu, C. K. Ng, Boon Kar Yap, Y. C. Teh, Y. M. Tan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The sinterability of manganese-doped 8 mol% yttria-stabilized zirconia ranging from 0.5–5 wt% was investigated. The role of dopants in the samples was studied in terms of phase stability, microstructures, and mechanical properties. Accordingly, 0.5, 1, 3, and 5 wt% manganese were doped into yttria-stabilized zirconia and heated at temperatures ranging from 1300 °C to 1550 °C. The study revealed that the milling process reduced powder particle size from 0.54 μm to 0.16 μm. The grain size of the samples increased with increasing sintering temperature, and adding manganese dopants promoted further grain growth. When sintered at 1450 °C, 3 wt% manganese enhanced the densification of the sample to a relative density of 95.8% and Vickers hardness peaked at 14.4 GPa. The samples with manganese dopants exhibited fracture toughness values of 4.1–4.6 MPa · m1/2 when sintered at temperatures above 1450 °C, regardless of dopant content. Zircon was found on the surface of the sintered sample with over 3 wt% manganese addition but did not disrupt zirconia phase stability. The study showed that the mechanical properties of yttria-stabilized zirconia improved when manganese dopants were added.

Original languageEnglish
Pages (from-to)331-336
Number of pages6
JournalMaterials Characterization
Volume120
DOIs
Publication statusPublished - 01 Oct 2016

Fingerprint

Manganese oxide
manganese oxides
Yttria stabilized zirconia
Manganese
yttria-stabilized zirconia
manganese
Doping (additives)
Phase stability
mechanical properties
Mechanical properties
Zircon
Vickers hardness
densification
manganese oxide
fracture strength
Grain growth
Densification
zirconium oxides
Zirconia
Powders

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Chong, F. D., Tan, C. Y., Singh, R., Muchtar, A., Somalu, M. R., Ng, C. K., ... Tan, Y. M. (2016). Effect of manganese oxide on the sinterability of 8 mol% yttria-stabilized zirconia. Materials Characterization, 120, 331-336. https://doi.org/10.1016/j.matchar.2016.09.001
Chong, F. D. ; Tan, C. Y. ; Singh, R. ; Muchtar, A. ; Somalu, M. R. ; Ng, C. K. ; Yap, Boon Kar ; Teh, Y. C. ; Tan, Y. M. / Effect of manganese oxide on the sinterability of 8 mol% yttria-stabilized zirconia. In: Materials Characterization. 2016 ; Vol. 120. pp. 331-336.
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abstract = "The sinterability of manganese-doped 8 mol{\%} yttria-stabilized zirconia ranging from 0.5–5 wt{\%} was investigated. The role of dopants in the samples was studied in terms of phase stability, microstructures, and mechanical properties. Accordingly, 0.5, 1, 3, and 5 wt{\%} manganese were doped into yttria-stabilized zirconia and heated at temperatures ranging from 1300 °C to 1550 °C. The study revealed that the milling process reduced powder particle size from 0.54 μm to 0.16 μm. The grain size of the samples increased with increasing sintering temperature, and adding manganese dopants promoted further grain growth. When sintered at 1450 °C, 3 wt{\%} manganese enhanced the densification of the sample to a relative density of 95.8{\%} and Vickers hardness peaked at 14.4 GPa. The samples with manganese dopants exhibited fracture toughness values of 4.1–4.6 MPa · m1/2 when sintered at temperatures above 1450 °C, regardless of dopant content. Zircon was found on the surface of the sintered sample with over 3 wt{\%} manganese addition but did not disrupt zirconia phase stability. The study showed that the mechanical properties of yttria-stabilized zirconia improved when manganese dopants were added.",
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Chong, FD, Tan, CY, Singh, R, Muchtar, A, Somalu, MR, Ng, CK, Yap, BK, Teh, YC & Tan, YM 2016, 'Effect of manganese oxide on the sinterability of 8 mol% yttria-stabilized zirconia', Materials Characterization, vol. 120, pp. 331-336. https://doi.org/10.1016/j.matchar.2016.09.001

Effect of manganese oxide on the sinterability of 8 mol% yttria-stabilized zirconia. / Chong, F. D.; Tan, C. Y.; Singh, R.; Muchtar, A.; Somalu, M. R.; Ng, C. K.; Yap, Boon Kar; Teh, Y. C.; Tan, Y. M.

In: Materials Characterization, Vol. 120, 01.10.2016, p. 331-336.

Research output: Contribution to journalArticle

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T1 - Effect of manganese oxide on the sinterability of 8 mol% yttria-stabilized zirconia

AU - Chong, F. D.

AU - Tan, C. Y.

AU - Singh, R.

AU - Muchtar, A.

AU - Somalu, M. R.

AU - Ng, C. K.

AU - Yap, Boon Kar

AU - Teh, Y. C.

AU - Tan, Y. M.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - The sinterability of manganese-doped 8 mol% yttria-stabilized zirconia ranging from 0.5–5 wt% was investigated. The role of dopants in the samples was studied in terms of phase stability, microstructures, and mechanical properties. Accordingly, 0.5, 1, 3, and 5 wt% manganese were doped into yttria-stabilized zirconia and heated at temperatures ranging from 1300 °C to 1550 °C. The study revealed that the milling process reduced powder particle size from 0.54 μm to 0.16 μm. The grain size of the samples increased with increasing sintering temperature, and adding manganese dopants promoted further grain growth. When sintered at 1450 °C, 3 wt% manganese enhanced the densification of the sample to a relative density of 95.8% and Vickers hardness peaked at 14.4 GPa. The samples with manganese dopants exhibited fracture toughness values of 4.1–4.6 MPa · m1/2 when sintered at temperatures above 1450 °C, regardless of dopant content. Zircon was found on the surface of the sintered sample with over 3 wt% manganese addition but did not disrupt zirconia phase stability. The study showed that the mechanical properties of yttria-stabilized zirconia improved when manganese dopants were added.

AB - The sinterability of manganese-doped 8 mol% yttria-stabilized zirconia ranging from 0.5–5 wt% was investigated. The role of dopants in the samples was studied in terms of phase stability, microstructures, and mechanical properties. Accordingly, 0.5, 1, 3, and 5 wt% manganese were doped into yttria-stabilized zirconia and heated at temperatures ranging from 1300 °C to 1550 °C. The study revealed that the milling process reduced powder particle size from 0.54 μm to 0.16 μm. The grain size of the samples increased with increasing sintering temperature, and adding manganese dopants promoted further grain growth. When sintered at 1450 °C, 3 wt% manganese enhanced the densification of the sample to a relative density of 95.8% and Vickers hardness peaked at 14.4 GPa. The samples with manganese dopants exhibited fracture toughness values of 4.1–4.6 MPa · m1/2 when sintered at temperatures above 1450 °C, regardless of dopant content. Zircon was found on the surface of the sintered sample with over 3 wt% manganese addition but did not disrupt zirconia phase stability. The study showed that the mechanical properties of yttria-stabilized zirconia improved when manganese dopants were added.

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