Committee Chair

Ibrahim, Hamdy

Committee Member

Elliott, Louie; Mahtabi Oghani, Mohammad Javad, 1982-

Department

Dept. of Mechanical Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

Biodegradable metals and alloys are materials that are intended to remain in the body long enough for healing to occur, and then degrade or dissolve after their service lifetime. Permanent implants are often much stiffer than the bone they are supporting, which can lead to loss of bone density, mechanical failure of the implant, and require corrective surgery. Biodegradable orthopedic implants offer strength and stiffness close to that of bone, prevent the need for corrective surgery, and eliminate the long-term existence of a foreign object in the body. In this work, in vitro corrosion of magnesium-samarium(III) oxide nanocomposites are studied for their use as biodegradable orthopedic materials. The Mg-1%Sm2O3 nanocomposite shows a promising corrosion rate, lower than pure magnesium. Additive manufacturing of zinc paste is also explored as a medium for fabrication of patient-specific implants. This work provides insight into the development of magnesium-based nanocomposites as biodegradable materials.

Acknowledgments

I would like to thank Dr. Hamdy Ibrahim for entrusting me with the development of his existing work, and for his continued support and guidance throughout this process. He has sacrificed a significant amount of his time and resources to allow me to pursue my passions, and for that I am grateful. I would like to thank Dr. Louie Elliott for his wisdom and assistance throughout my academic career at UTC, and especially during my additive manufacturing obstacles. I would like to thank Dr. Trevor Elliott for providing the opportunity for me to work as a graduate assistant. I would like to thank Moataz Abdalla for his work and support throughout our time as lab partners. I would like to thank Karl Fletcher for his help setting up our lab. I would also like to thank Ben Swords for his assistance in fabricating the nanocomposite samples.

Degree

M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.

Date

5-2021

Subject

Biodegradable products; Corrosion; Orthopedic implants

Keyword

biodegradable;bone;corrosion;implant;orthopedic;metal

Document Type

Masters theses

DCMI Type

Text

Extent

xv, 59 leaves

Language

English

Rights

http://rightsstatements.org/vocab/InC/1.0/

License

http://creativecommons.org/licenses/by/4.0/

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