The Department of Materials Engineering at the University of Technology awarded a Master’s degree to Samara Bashar, Department of Materials Engineering/ University of Technology, for his tagged dissertation ("Characterization of Electrostatic Deposition of Hybrid Biocomposite Materials”)
Where the discussion took place in the postgraduate hall in Building C in the department on Tuseday 11/10 /2022 at nine in the morning, and the discussion committee consisted of:
|
Names |
Position in the Committee |
|
Asst. Prof. Mohammed Abdul Hussain Al-Zehairi |
Chairman |
|
Asst. Prof. Dr. Qhatan Adnan Hamed |
Member |
|
Lect. Dr. Raad Suhail Ahmed Adnan |
Member |
|
Asst Prof. Dr Hana Areer Sameh |
Supervisor |
|
Asst Prof. Dr Mohanad Najah |
Supervisor |
the scientific evaluation of the thesis by by Prof. Dr. Ahmed Odeh Jassim/ University of Babylon/ College of Materials Engineering, and Prof. Dr. Sadir Muwaffaq Majeed/ University of Technology/ Department of Applied Sciences, and linguistically by Asst.Prof.Dr. Mahdi Qasem Zayer/ University of Technology/ Department of Applied Sciences.
The discussion of the dissertation was conducted in a scientific atmosphere and a master's degree
with grade of pass was awarded to the student after the completion of all the corrections that have been decided by the examiners.
Abstract
This study aimed to enhance the biocompatibility and corrosion resistance of commercially pure titanium substrate using the most modern deposition technique utilized for biomedical applications, Electrostatic Spray Deposition (ESD). To construct the bio composite-polymer base coating, different percent’s (2, 6, and 10) wt.% of Hydroxyapatite (HAP), Nickel Oxide (NiO), and Niobium Oxide (Nb2O5) powder were combined with (98, 94, and 90) wt.% of polymethyl methacrylate (PMMA) powder coating. And, the hybrid coatings groups were constructed by combining different percents of (NiO with HAP) and (Nb2O5 with HAP) with 90 wt.% of PMMA. The FESEM, EDS mapping, XRD, FTIR, contact angle, and anti-bacterial tests demonstrated that the coating layer was consistent, crack-free, hydrophilic, and had good inhibition of bacterial growth. While the in vitro experiments prove that in simulated body fluid for 30 days at 37°C, the coating layers exhibited a significant capacity for forming apatite crystals on their surfaces indicating high osseoconductivity and the immersion test showed high corrosion resistance. Also, Vickers microhardness and scratch hardness showed that the ceramics particles improve the polymeric coating hardness and adhesion.
