In vitro biocompatibility of a sandblasted, acid-etched HA composite coating on ultrafine-grained titanium

A sandblasted, acid-etched hydroxyapatite (SLA-HA) composite coating on ultrafine-grained titanium was synthesized by sandblasting, acid etching and electrophoresis deposition.

Enhancing Electrical and Thermal Properties of Al6061 Parts by Electrophoresis Deposition of Multi-Walled Carbon Nanotubes

The present research work focuses on depositing multi-walled carbon nanotubes (MWCNTs) onto aluminum parts to modify their electrical and thermal properties by an electrodeposition process (EDP). This film coated over the sample surface creates a network of high conductive thin layer that promotes free electron flow and heat-loss reduction. Experimental measurements on the metallic surface part show an increment of the electrical conductivity of 9.6% for the sample coated with 0.05 mg/mL of MWCNTs with a heat dissipation increase of 36%.

Enhancing the photocatalytic activity of commercial P25 TiO2 powder by combining with handmade ni-doped TiO2 powder

Titanium dioxide (TiO_2) is the most popular photocatalytic material. However, its operation is limited to UV light only. In this paper, we tried to improve the visible light responsiveness of TiO_2 by doping Nickel (Ni) using sol-gel method. By combining Ni-doped TiO_2 powder with commercially available P25 TiO_2 powder to make photocatalytic thin films, significant improvement in photocatalytic activity has been obtained. Furthermore, we also studied the relationship between the surface condition of photocatalytic thin films and their photocatalytic activity. The surface condition was improved by multilayer electrophoresis deposition method. Based on experimental results, by combining 10 - 20 wt% Ni-doped TiO_2 with P25 TiO_2, we could significantly enhance the photocatalytic activity of P25 TiO_2.