Using Additive Processing to Harness and Implement Graphene Technology for Wear and Corrosion Protection
Abstract
Graphene is an amazing two dimensional material that has garnered much attention since it was first fabricated nearly 20 years ago. Since its discovery in2006, scientists and engineers have attempted to find applications of graphene, both standalone and as a part of a composite material, to bring the nanomaterial to market. As of 2022, nearly 20 different products have come to market taking advantage of one or more of graphene's amazing properties, e.g., use as a flexible touch screen for smartphones because of the high electrical conductivity, stiffness, and optimal optical properties of graphene. This study focused on using graphene in both a polymer matrix composite and in an aluminum cold-sprayed coating. Graphene was added to a common polymer, polyethyleneterephthalate glycol (PETG), to improve the hardness, wear resistance, and UV resistance of the polymer. The nanomaterial improved the hardness and wear resistance but experienced greater degradation when exposed to UV-B radiation at high temperature and humidity. Graphene was also added to Al powders, which were then cold sprayed onto an aluminum substrate. The graphene improved the hardness and adhesion strength of the coating but saw reduced wear resistance. Both effects were attributed to the interaction of the graphene with the Al splats in the coating.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 18, 2022
- Accession Number
- AD1184539
Entities
People
- Andy Nieto
- Troy Y Ansell
Organizations
- Naval Postgraduate School