Fabrication and mechanical properties of functionally graded material by electrophoretic depositionJournal of the Mechanical Behavior of Biomedical Materials (2012)
AbstractThis study describes the synthesis of Al(2)O(3)/SiC/ZrO(2) 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 Al(2)O(3)/SiC/ZrO(2), 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.% Al(2)O(3)+10 vol.% SiC) and maximum fracture toughness in the core layer (75 vol.% Al(2)O(3)+10 vol.% SiC + 15 vol.% ZrO(2)) composite were 20.8+/-0.3 GPa and 8+/-0.1 MPa m(1/2), respectively. The results, when compared with results from Al(2)O(3)/ZrO(2) FGM, showed that SiC increased the compressive stresses in the outer layers, while the inner layers were under a residual tensile stress.
- functionally graded material electrophoretic deposition
Publication DateAugust, 2012
Citation InformationNahrizul Adib kadri. "Fabrication and mechanical properties of 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/6/