Effect of manganese oxide on the densification and properties of ceria-doped scandia stabilized zirconia

C. K. Ng, S. Ramesh, C. Y. Tan, C. Y. Ching, N. Lwin, Andanastuti Muchtar

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the present work, the effect of manganese oxide (MnO2) additions (0, 0.5, 1 and 5 wt%) on the properties of ceria-doped scandia stabilized zirconia (10Sc1CeSZ) was investigated over the temperature range of 1400°C to 1550°C. The results showed that the addition up to 1 wt% had negligible effect on the mechanical properties of the ceramic. The samples containing up to 1 wt% MnO2 attained above 97.5% relative density, Vickers hardness of 13-14 GPa and fracture toughness of about 3 MPam1/2. In addition, it was revealed that the 0.5 wt% MnO2 addition was beneficial in suppressing the cubic zirconia grain growth i.e. the highest average grain size was measured at 4.9 µm when sintered at 1550°C as compared to 9.9 µm measured for the undoped zirconia when sintered at the same temperature. On the other hand, the addition of 5 wt% MnO2 was found to be detrimental to the densification and properties of the zirconia, particularly when sintered at higher temperatures. This was attributed to the accelerated grain growth of the doped samples, i.e. the grain size increased by 2 fold, to 18.6 µm when sintered at 1550°C.

Original languageEnglish
Pages (from-to)443-447
Number of pages5
JournalJournal of Ceramic Processing Research
Volume17
Issue number5
Publication statusPublished - 2016

Fingerprint

Scandium
Manganese oxide
Cerium compounds
Densification
Zirconia
Grain growth
Vickers hardness
Temperature
Fracture toughness
Mechanical properties
zirconium oxide
manganese oxide

Keywords

  • Ceria-doped scandia stabilized zirconia
  • Cubic zirconia
  • Manganese oxide addition
  • Mechanical properties
  • Sintering

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Effect of manganese oxide on the densification and properties of ceria-doped scandia stabilized zirconia. / Ng, C. K.; Ramesh, S.; Tan, C. Y.; Ching, C. Y.; Lwin, N.; Muchtar, Andanastuti.

In: Journal of Ceramic Processing Research, Vol. 17, No. 5, 2016, p. 443-447.

Research output: Contribution to journalArticle

@article{5223b121ab8e4187bd9888e8ca768acc,
title = "Effect of manganese oxide on the densification and properties of ceria-doped scandia stabilized zirconia",
abstract = "In the present work, the effect of manganese oxide (MnO2) additions (0, 0.5, 1 and 5 wt{\%}) on the properties of ceria-doped scandia stabilized zirconia (10Sc1CeSZ) was investigated over the temperature range of 1400°C to 1550°C. The results showed that the addition up to 1 wt{\%} had negligible effect on the mechanical properties of the ceramic. The samples containing up to 1 wt{\%} MnO2 attained above 97.5{\%} relative density, Vickers hardness of 13-14 GPa and fracture toughness of about 3 MPam1/2. In addition, it was revealed that the 0.5 wt{\%} MnO2 addition was beneficial in suppressing the cubic zirconia grain growth i.e. the highest average grain size was measured at 4.9 µm when sintered at 1550°C as compared to 9.9 µm measured for the undoped zirconia when sintered at the same temperature. On the other hand, the addition of 5 wt{\%} MnO2 was found to be detrimental to the densification and properties of the zirconia, particularly when sintered at higher temperatures. This was attributed to the accelerated grain growth of the doped samples, i.e. the grain size increased by 2 fold, to 18.6 µm when sintered at 1550°C.",
keywords = "Ceria-doped scandia stabilized zirconia, Cubic zirconia, Manganese oxide addition, Mechanical properties, Sintering",
author = "Ng, {C. K.} and S. Ramesh and Tan, {C. Y.} and Ching, {C. Y.} and N. Lwin and Andanastuti Muchtar",
year = "2016",
language = "English",
volume = "17",
pages = "443--447",
journal = "Journal of Ceramic Processing Research",
issn = "1229-9162",
publisher = "Hanyang University",
number = "5",

}

TY - JOUR

T1 - Effect of manganese oxide on the densification and properties of ceria-doped scandia stabilized zirconia

AU - Ng, C. K.

AU - Ramesh, S.

AU - Tan, C. Y.

AU - Ching, C. Y.

AU - Lwin, N.

AU - Muchtar, Andanastuti

PY - 2016

Y1 - 2016

N2 - In the present work, the effect of manganese oxide (MnO2) additions (0, 0.5, 1 and 5 wt%) on the properties of ceria-doped scandia stabilized zirconia (10Sc1CeSZ) was investigated over the temperature range of 1400°C to 1550°C. The results showed that the addition up to 1 wt% had negligible effect on the mechanical properties of the ceramic. The samples containing up to 1 wt% MnO2 attained above 97.5% relative density, Vickers hardness of 13-14 GPa and fracture toughness of about 3 MPam1/2. In addition, it was revealed that the 0.5 wt% MnO2 addition was beneficial in suppressing the cubic zirconia grain growth i.e. the highest average grain size was measured at 4.9 µm when sintered at 1550°C as compared to 9.9 µm measured for the undoped zirconia when sintered at the same temperature. On the other hand, the addition of 5 wt% MnO2 was found to be detrimental to the densification and properties of the zirconia, particularly when sintered at higher temperatures. This was attributed to the accelerated grain growth of the doped samples, i.e. the grain size increased by 2 fold, to 18.6 µm when sintered at 1550°C.

AB - In the present work, the effect of manganese oxide (MnO2) additions (0, 0.5, 1 and 5 wt%) on the properties of ceria-doped scandia stabilized zirconia (10Sc1CeSZ) was investigated over the temperature range of 1400°C to 1550°C. The results showed that the addition up to 1 wt% had negligible effect on the mechanical properties of the ceramic. The samples containing up to 1 wt% MnO2 attained above 97.5% relative density, Vickers hardness of 13-14 GPa and fracture toughness of about 3 MPam1/2. In addition, it was revealed that the 0.5 wt% MnO2 addition was beneficial in suppressing the cubic zirconia grain growth i.e. the highest average grain size was measured at 4.9 µm when sintered at 1550°C as compared to 9.9 µm measured for the undoped zirconia when sintered at the same temperature. On the other hand, the addition of 5 wt% MnO2 was found to be detrimental to the densification and properties of the zirconia, particularly when sintered at higher temperatures. This was attributed to the accelerated grain growth of the doped samples, i.e. the grain size increased by 2 fold, to 18.6 µm when sintered at 1550°C.

KW - Ceria-doped scandia stabilized zirconia

KW - Cubic zirconia

KW - Manganese oxide addition

KW - Mechanical properties

KW - Sintering

UR - http://www.scopus.com/inward/record.url?scp=84980022420&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84980022420&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84980022420

VL - 17

SP - 443

EP - 447

JO - Journal of Ceramic Processing Research

JF - Journal of Ceramic Processing Research

SN - 1229-9162

IS - 5

ER -