Advanced 3Y-TZP bioceramic doped with Al 2 O 3 and CeO 2 potentially for biomedical implant applications

Mohsen Golieskardi, Meenaloshini Satgunam, Dinesh Ragurajan, Md Enamul Hoque, Min Hwei Ng, Lohashenpahan Shanmuganantha

Research output: Contribution to journalArticle

Abstract

This research studies 3 mol% yttria-stabilized zirconia (3Y-TZP) investigating the effects of Al 2 O 3 and CeO 2 dopants on the stability of tetragonal phase and the microstructure of 3Y-TZP determined over the operating temperature ranging from 1250°C to 1550°C. It is found that the mechanical properties of 3Y-TZP are dependent on the sintering temperature and the dopant amount. The current study reveals that the optimum sintering temperature is 1450°C for all 3Y-TZP samples while attaining more than 98% of the theoretical density (6.1g/cm 3 ). With optimum dopants, the 3Y-TZP ceramic samples demonstrate the Vickers hardness of 10.9 GPa and fracture toughness (K IC ) of 10 MPa.m 1/2 . Fracture toughness increases with the dopant content, indicating that the annihilation of oxygen vacancies in 3Y-TZP is responsible for the instability of the t-ZrO 2 lattice. To investigate the biocompatibility of 3Y-TZP, cell culture study was performed using osteoblast cells. The results demonstrate a high percentage of cell attachment and proliferation that confirmed the biocompatibility of synthesized 3Y-TZP.

Original languageEnglish
Pages (from-to)480-489
Number of pages10
JournalMaterials Technology
Volume34
Issue number8
DOIs
Publication statusPublished - 3 Jul 2019

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Bioceramics
biocompatibility
fracture strength
sintering
Doping (additives)
osteoblasts
Vickers hardness
toughness
yttria-stabilized zirconia
cells
operating temperature
Biocompatibility
attachment
Fracture toughness
Sintering
mechanical properties
ceramics
microstructure
temperature
Yttria stabilized zirconia

Keywords

  • 3Y-TZP
  • Bioceramic
  • cell morphology
  • cell proliferation
  • cytotoxicity
  • mechanical properties

ASJC Scopus subject areas

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

Cite this

Advanced 3Y-TZP bioceramic doped with Al 2 O 3 and CeO 2 potentially for biomedical implant applications . / Golieskardi, Mohsen; Satgunam, Meenaloshini; Ragurajan, Dinesh; Hoque, Md Enamul; Ng, Min Hwei; Shanmuganantha, Lohashenpahan.

In: Materials Technology, Vol. 34, No. 8, 03.07.2019, p. 480-489.

Research output: Contribution to journalArticle

Golieskardi, Mohsen ; Satgunam, Meenaloshini ; Ragurajan, Dinesh ; Hoque, Md Enamul ; Ng, Min Hwei ; Shanmuganantha, Lohashenpahan. / Advanced 3Y-TZP bioceramic doped with Al 2 O 3 and CeO 2 potentially for biomedical implant applications In: Materials Technology. 2019 ; Vol. 34, No. 8. pp. 480-489.
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