Advanced 3Y-TZP bioceramic doped with Al2O3 and MnO2 particles potentially for biomedical applications: Study on mechanical and degradation properties

Dinesh Ragurajan, Mohsen Golieskardi, Meenaloshini Satgunam, Md Enamul Hoque, Min Hwei Ng, Mariyam Jameelah Ghazali, Ahmad Kamal Ariffin Mohd Ihsan

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The effectiveness of Al2O3 and MnO2 in enhancing mechanical properties and retarding degradation of 3mol% yttria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic samples was evaluated by pressureless sintering at temperatures ranging from 1250°C to 1550°C with standard holding time of 2h. It was observed that the inclusion of Al2O3 and MnO2 into 3Y-TZP was beneficial for the improvement of mechanical properties and ageing resistance. The optimum amounts of dopants were determined to be of 0.6wt% Al2O3 and 0.4wt% MnO2. Microstructural investigation revealed that at the same temperature, the tetragonal grain size was not influenced by the increase of dopant levels. With optimum dopants the 3Y-TZP ceramic (density 6.1g/cm3) samples demonstrated the Vickers hardness of 11.6GPa, fracture toughness, K IC of 9.8MPam1/2, flexural strength of 900MPa and Young's modulus of 210GPa. Furthermore, the efficacy of the dopants (MnO2 and Al2O3) in retarding low-temperature degradation of 3Y-TZP ceramic during exposure in Ringer's solution at 37°C was also evaluated. Overall, the degradation rate and weight loss of 0.6wt% Al2O3 and 0.4wt% MnO2 ceramic samples were 0.66% in 8 weeks as compared to the undoped samples. The 3Y-TZP bioceramic doped with Al2O3 and MnO2 could be a potential candidate material for biomedical applications (e.g. hip implants) due to its improved mechanical properties and superior ageing resistance.

Original languageEnglish
JournalJournal of Materials Research and Technology
DOIs
Publication statusAccepted/In press - 1 Jan 2017

Fingerprint

Bioceramics
Yttria stabilized zirconia
Degradation
Doping (additives)
Mechanical properties
Aging of materials
Vickers hardness
Bending strength
Temperature
Fracture toughness
Sintering
Elastic moduli
yttria stabilized tetragonal zirconia

Keywords

  • 3Y-TZP
  • Bioceramic
  • Degradation
  • Hip implant
  • Mechanical properties
  • Ringer's solution

ASJC Scopus subject areas

  • Ceramics and Composites
  • Biomaterials
  • Surfaces, Coatings and Films
  • Metals and Alloys

Cite this

@article{aa30f098cb844faaa391957686ddc765,
title = "Advanced 3Y-TZP bioceramic doped with Al2O3 and MnO2 particles potentially for biomedical applications: Study on mechanical and degradation properties",
abstract = "The effectiveness of Al2O3 and MnO2 in enhancing mechanical properties and retarding degradation of 3mol{\%} yttria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic samples was evaluated by pressureless sintering at temperatures ranging from 1250°C to 1550°C with standard holding time of 2h. It was observed that the inclusion of Al2O3 and MnO2 into 3Y-TZP was beneficial for the improvement of mechanical properties and ageing resistance. The optimum amounts of dopants were determined to be of 0.6wt{\%} Al2O3 and 0.4wt{\%} MnO2. Microstructural investigation revealed that at the same temperature, the tetragonal grain size was not influenced by the increase of dopant levels. With optimum dopants the 3Y-TZP ceramic (density 6.1g/cm3) samples demonstrated the Vickers hardness of 11.6GPa, fracture toughness, K IC of 9.8MPam1/2, flexural strength of 900MPa and Young's modulus of 210GPa. Furthermore, the efficacy of the dopants (MnO2 and Al2O3) in retarding low-temperature degradation of 3Y-TZP ceramic during exposure in Ringer's solution at 37°C was also evaluated. Overall, the degradation rate and weight loss of 0.6wt{\%} Al2O3 and 0.4wt{\%} MnO2 ceramic samples were 0.66{\%} in 8 weeks as compared to the undoped samples. The 3Y-TZP bioceramic doped with Al2O3 and MnO2 could be a potential candidate material for biomedical applications (e.g. hip implants) due to its improved mechanical properties and superior ageing resistance.",
keywords = "3Y-TZP, Bioceramic, Degradation, Hip implant, Mechanical properties, Ringer's solution",
author = "Dinesh Ragurajan and Mohsen Golieskardi and Meenaloshini Satgunam and Hoque, {Md Enamul} and Ng, {Min Hwei} and Ghazali, {Mariyam Jameelah} and {Mohd Ihsan}, {Ahmad Kamal Ariffin}",
year = "2017",
month = "1",
day = "1",
doi = "10.1016/j.jmrt.2017.05.015",
language = "English",
journal = "Journal of Materials Research and Technology",
issn = "2238-7854",
publisher = "Elsevier Editora Ltda",

}

TY - JOUR

T1 - Advanced 3Y-TZP bioceramic doped with Al2O3 and MnO2 particles potentially for biomedical applications

T2 - Study on mechanical and degradation properties

AU - Ragurajan, Dinesh

AU - Golieskardi, Mohsen

AU - Satgunam, Meenaloshini

AU - Hoque, Md Enamul

AU - Ng, Min Hwei

AU - Ghazali, Mariyam Jameelah

AU - Mohd Ihsan, Ahmad Kamal Ariffin

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The effectiveness of Al2O3 and MnO2 in enhancing mechanical properties and retarding degradation of 3mol% yttria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic samples was evaluated by pressureless sintering at temperatures ranging from 1250°C to 1550°C with standard holding time of 2h. It was observed that the inclusion of Al2O3 and MnO2 into 3Y-TZP was beneficial for the improvement of mechanical properties and ageing resistance. The optimum amounts of dopants were determined to be of 0.6wt% Al2O3 and 0.4wt% MnO2. Microstructural investigation revealed that at the same temperature, the tetragonal grain size was not influenced by the increase of dopant levels. With optimum dopants the 3Y-TZP ceramic (density 6.1g/cm3) samples demonstrated the Vickers hardness of 11.6GPa, fracture toughness, K IC of 9.8MPam1/2, flexural strength of 900MPa and Young's modulus of 210GPa. Furthermore, the efficacy of the dopants (MnO2 and Al2O3) in retarding low-temperature degradation of 3Y-TZP ceramic during exposure in Ringer's solution at 37°C was also evaluated. Overall, the degradation rate and weight loss of 0.6wt% Al2O3 and 0.4wt% MnO2 ceramic samples were 0.66% in 8 weeks as compared to the undoped samples. The 3Y-TZP bioceramic doped with Al2O3 and MnO2 could be a potential candidate material for biomedical applications (e.g. hip implants) due to its improved mechanical properties and superior ageing resistance.

AB - The effectiveness of Al2O3 and MnO2 in enhancing mechanical properties and retarding degradation of 3mol% yttria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic samples was evaluated by pressureless sintering at temperatures ranging from 1250°C to 1550°C with standard holding time of 2h. It was observed that the inclusion of Al2O3 and MnO2 into 3Y-TZP was beneficial for the improvement of mechanical properties and ageing resistance. The optimum amounts of dopants were determined to be of 0.6wt% Al2O3 and 0.4wt% MnO2. Microstructural investigation revealed that at the same temperature, the tetragonal grain size was not influenced by the increase of dopant levels. With optimum dopants the 3Y-TZP ceramic (density 6.1g/cm3) samples demonstrated the Vickers hardness of 11.6GPa, fracture toughness, K IC of 9.8MPam1/2, flexural strength of 900MPa and Young's modulus of 210GPa. Furthermore, the efficacy of the dopants (MnO2 and Al2O3) in retarding low-temperature degradation of 3Y-TZP ceramic during exposure in Ringer's solution at 37°C was also evaluated. Overall, the degradation rate and weight loss of 0.6wt% Al2O3 and 0.4wt% MnO2 ceramic samples were 0.66% in 8 weeks as compared to the undoped samples. The 3Y-TZP bioceramic doped with Al2O3 and MnO2 could be a potential candidate material for biomedical applications (e.g. hip implants) due to its improved mechanical properties and superior ageing resistance.

KW - 3Y-TZP

KW - Bioceramic

KW - Degradation

KW - Hip implant

KW - Mechanical properties

KW - Ringer's solution

UR - http://www.scopus.com/inward/record.url?scp=85056521537&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056521537&partnerID=8YFLogxK

U2 - 10.1016/j.jmrt.2017.05.015

DO - 10.1016/j.jmrt.2017.05.015

M3 - Article

AN - SCOPUS:85056521537

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

SN - 2238-7854

ER -