Electronic Theses and Dissertations

Identifier

6433

Date

2019

Document Type

Thesis

Degree Name

Master of Science

Major

Mechanical Engineering

Committee Chair

Ranganathan Gopalakrishnan

Committee Member

Gary Qi

Committee Member

Teong Tan

Abstract

Aerosol Deposition Method is a technique in which micro or nanoparticles are deposited onto the substrate at the room temperature without the need for sintering and without the use of any solvent. In this method powders of primary size of nanometers or micrometers are aerosolized and are accelerated through the nozzle onto the substrate with high kinetic energy. Upon the impaction onto substrate, the kinetic energy of the particles is converted into the strain energy which causes the deformation of substrate and the particle itself gets fractured. Because of this, the particles get attached to the substrate to form a fine coating at room temperature. Particles used in this study is hydroxyapatite, which is a naturally occurring mineral form of calcium. Substrate used in this study is Titanium alloy. The goal is to basically form a dense, compact and uniform layer of hydroxyapatite particle over Titanium alloy. The size and nature of powder, nature of substrate, kinetic energy provided and the deposition pressure, all came into account to form a fine coating. These types of ceramic coating have immense potential for dental and other biomedical implants.

Comments

Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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