Tribology and in-vitro biological characterization of samaria doped ceria stabilized zirconia ceramics

Bejugama, Shiva and Chameettachal, Shibu and Pati, Falguni and Pandey, Ajoy Kumar (2021) Tribology and in-vitro biological characterization of samaria doped ceria stabilized zirconia ceramics. Ceramics International, 47 (12). pp. 17580-17588. ISSN 02728842

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Samaria doped ceria stabilized zirconia (SmCSZ) ceramic discs were prepared through powder metallurgy technique and sintered in an air atmosphere. Near full dense sintered discs were tested using a pin on disk wear testing machine to evaluate tribological properties. The Low-Temperature Degradation (LTD) behaviour of SmCSZ was assessed using a hydrothermal aging study. The bioactivity was studied through a simulated body fluid immersion test, and the cytotoxic behaviour was evaluated by culturing osteoblast-like (MG63) cells on the surface of samples. It was observed that SmCSZ samples shown better tribological properties compared to undoped ceria stabilized zirconia (CSZ). The accelerated aging revealed no monoclinic phase transformation (no degradation) in SmCSZ even after 200 h of study, indicating its high resistance to LTD. The chemical treatment of samples with 5 M H3PO4 solution enhanced the bioactivity, and the cell culture study showed that the cells are metabolically active and proliferating on the surface of SmCSZ.

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IITH Creators:
IITH CreatorsORCiD
Chameettachal, ShibuUNSPECIFIED
Pati, Falguni
Item Type: Article
Uncontrolled Keywords: A sintering; C wear resistance; D ZrO2; E biomedical applications; Sm2O3
Subjects: Biomedical Engineering
Divisions: Department of Biomedical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 10 Jul 2021 05:44
Last Modified: 10 Jul 2021 05:44
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