ORCID Identifier(s)

0000-0001-8357-3573

Graduation Semester and Year

2020

Language

English

Document Type

Thesis

Degree Name

Master of Science in Materials Science and Engineering

Department

Materials Science and Engineering

First Advisor

Efstathios Meletis

Abstract

Electrolytic plasma processing (EPP) is an environmentally friendly surface cleaning and deposition technique. Dependant on circuit polarity, anionic or cationic species can be deposited from an aqueous electrolyte bridge, resulting in characteristic nanograin surface morphology and very high deposition rates. This work was conducted to study the EPP process, develop optimal parameters for the synthesis of very hard surface coatings, and study the resultant physical and electrochemical properties of produced titanium-nickel intermetallic surfaces. This study focuses on Ni deposited onto pure Ti surfaces for improvement of surface wear, hardness, and corrosion properties while retaining uncompromised Ti bulk characteristics. The surface of the coatings as well as properties of the interface are studied in order to understand resultant Nickel surface film characteristics as well as the intermetallic formation within the interface. Microstructure, morphology, wear and corrosion properties, and phases are studied via electron microscopy, profilometry, x-ray diffraction, anodic polarization, and wear testing. The EPP cleaning of Ti is briefly outlined and supported by literature and findings of fellow UTA Surface and Nanoengineering Laboratory (SaNEL) researchers.

Keywords

Electrolytic plasma processing, Plasma Electrolyte Deposition EPP, Surface coatings, Thin films, Corrosion, Wear resistance, Surface physics

Disciplines

Engineering | Materials Science and Engineering

Comments

Degree granted by The University of Texas at Arlington

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