Piezoelectric barium titanate/hydroxyapatite composite coatings on Ti-6Al-4V alloy via electrophoretic deposition.

ABSTRACT: Electrophoretic deposition (EPD) is a widely accepted, cost-effective and simple method to obtain conformal coatings of dense nanoparticles via application of a DC voltage. This paper reports the physical and mechanical properties of nanostructured barium titanate/hydroxyapatite (BT/HA) ceramic composites coated onto Ti-6Al-4V alloy via cathodic EPD in various ratios of 40:60, 50:50 and 60:40 (HB4, HB5 and HB6) respectively. Homogenous BT/HA coatings were obtained at a notably low voltage of 10 V. The crystallinity and phase analysis confirmed the formation of tetragonal phase of BT indicating the piezoelectric property. HB6 exhibits maximum piezoelectric coefficient (d₃₃) of 159 pC/N and Vicker's hardness of 242.31 HV. The cross-sectional electron micrographs show well connecte

SUBMITTER: Nair AS 

PROVIDER: S-EPMC11620139 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature