Fabrication and mechanical properties of Al2O3/SiC/ZrO2 functionally graded material by electrophoretic depositionJournal of the Mechanical Behavior of Biomedical Materials (2012)
AbstractThis study describes the synthesis of Al2O3/SiC/ZrO2 functionally graded material (FGM) in bio-implants (artificial joints) by electrophoretic deposition (EPD). A suitable suspension that was based on 2-butanone was applied for the EPD of Al2O3/SiC/ZrO2, and a pressureless sintering process was applied as a presintering. Hot isostatic pressing (HIP) was used to densify the deposit, with beneficial mechanical properties after 2 h at 1800 degrees C in Ar atmosphere. The maximum hardness in the outer layer (90 vol.% Al2O3 + 10 vol.% SiC) and maximum fracture toughness in the core layer (75 vol.% Al2O3 + 10 vol.% SiC + 15 vol.% ZrO2) composite were 20.8 +/- 0.3 GPa and 8 +/- 0.1 MPa m(1/2), respectively. The results, when compared with results from Al2O3/ZrO2 FGM, showed that SiC increased the compressive stresses in the outer layers, while the inner layers were under a residual tensile stress. (C) 2012 Elsevier Ltd. All rights reserved.
- electrophoretic deposition
Publication DateAugust, 2012
Citation InformationNahrizul Adib kadri. "Fabrication and mechanical properties of Al2O3/SiC/ZrO2 functionally graded material by electrophoretic deposition" Journal of the Mechanical Behavior of Biomedical Materials Vol. 12 (2012)
Available at: http://works.bepress.com/nahrizuladib_kadri/5/