Off-campus UMass Amherst users: To download campus access dissertations, please use the following link to log into our proxy server with your UMass Amherst user name and password.
Non-UMass Amherst users: Please talk to your librarian about requesting this dissertation through interlibrary loan.
Dissertations that have an embargo placed on them will not be available to anyone until the embargo expires.
ORCID
N/A
Access Type
Open Access Thesis
Document Type
thesis
Degree Program
Mechanical Engineering
Degree Type
Master of Science (M.S.)
Year Degree Awarded
2016
Month Degree Awarded
September
Abstract
When a solid, ductile particle impacts a substrate at sufficient velocity, the resulting heat, pressure, and plastic deformation can produce bonding at the interface. The use of a supersonic gas flow to accelerate such particles is known as Cold Spray deposition. The Cold Spray process has been commercialized for some metallic materials, but further research is required to unlock the exciting material properties possible with polymeric compounds. In this work, a combined computational and experimental study a) simulated and optimized the nozzle flow conditions necessary to produce bonding in a polyethylene particle, b) developed and fabricated an experimental device, and c) explored temperature-pressure space across a range of substrate materials, resolving a material dependent ‘window of deposition’ where successful coatings form. Insights into bonding mechanisms are discussed, and paths forward proposed.
DOI
https://doi.org/10.7275/9028138
First Advisor
Jonathan P. Rothstein
Second Advisor
David P. Schmidt
Third Advisor
Jae-Hwang Lee
Recommended Citation
Bush, Trenton, "Cold Gas Dynamic Spray – Characterization of Polymeric Deposition" (2016). Masters Theses. 413.
https://doi.org/10.7275/9028138
https://scholarworks.umass.edu/masters_theses_2/413
Included in
Applied Mechanics Commons, Dynamics and Dynamical Systems Commons, Manufacturing Commons, Polymer and Organic Materials Commons