Print ISSN: 1681-6900

Online ISSN: 2412-0758

Author : A. Anaee, Rana

Characterization of Nb2O5-Ni Coating Prepared by DC Sputtering

Hiyam M. Jedy; Rana A. Anaee; Abdullah A. Abdulkarim

Engineering and Technology Journal, 2021, Volume 39, Issue 4, Pages 565-572
DOI: 10.30684/etj.2021.168135

The Nb2O5-Ni coating was processed using DC sputtering on structural steel and study characterization of composite coating SEM/EDS inspection indicated clearly perfect incorporation of Nb2O5 within the nickel rich. Increasing in surface roughness and decreasing in average diameters of particles were obtained for coated surface compared with uncoated surface from AFM analysis, in addition, microhardness test and thickness test showed that increasing of the hardness value to 163 HV for Nb2O5 - Ni composite coating compared to 132 HV for uncoated samples, the hardness for Ni coating also increasing to155 HV and the thickness for Nb2O5-Ni composite coatings increased significantly compared to uncoated samples.

Deposition of CeO2/TCP Thin Film on Stainless Steel 316 L by RF sputtering

Hiba A. Abdullah; Ahmed M. Al-Ghaban; Rana A. Anaee

Engineering and Technology Journal, 2021, Volume 39, Issue 4, Pages 625-631
DOI: 10.30684/etj.2021.168140

RF sputtering method was used for deposition 70wt% CeO2/TCP thin film on stainless steel 316L surface. The selection of ceria and tricalcium phosphate is according to the fact the importance of these materials in biomedical media. The produced coating was characterized by XRD, FESEM/EDS and AFM analysis, the result revealed that the obtained peaks from XRD refer to the deposited materials. When substitution of Ce was done, distorting of the lattice structure can occur suggesting certain incorporation of the cerium oxide within TCP lattice. Also, from SEM investigation uniformly homogeneous surface as a layer of (CeO2 + CaO) and TCP as sharp plate-like crystals. EDS analysis of coating confirms the presence of Ce, Ca, O and P elements, thickness was determined at 130.7 nm. The soaking in Simulation body fluid indicated the formation of layers like hydroxyapatite, which investigated by XRD and FESEM/EDS methods.