Electrophoretic deposition of nanocomposites for ultra-thin lubricant film
A novel electrophoretic deposition (EPD) process forms ultra-thin nanocomposite coatings by using boron nitride and high-performance thermoplastics. This scalable and sustainable method offers an alternative to PFAS-based coatings, enhancing durability and reducing friction for metallic substrates.
Overview
The proposed electrophoretic deposition (EPD) technology introduces a cutting-edge method for creating ultra-thin nanocomposite coatings on metallic substrates. Utilizing nanoparticles of boron nitride (BN) and high-performance thermoplastics like PPS, this process achieves a uniform and conformal layer through controlled electric fields. This technology is designed to replace traditional PFAS-based coatings, offering a sustainable solution with low energy consumption and enhanced performance in reducing friction on substrates such as razor blades.
Technical specifications
- Nanocomposite Composition: Utilizes boron nitride (h-BN, BNNT) and PPS nanoparticles, functionalized for improved dispersion and bonding.
- EPD Process: Involves deposition of charged nanoparticles onto conductive substrates under an electric field, followed by heat treatment below 400°C.
- Coating Thickness: Achieves coatings as thin as 0.1-0.5 µm with strong interfacial bonding.
- Scalability: Designed for scalable production, offering a feasible and sustainable alternative to current coating technologies.
- Applications: Ideal for metallic substrates requiring low-friction, durable coatings such as razor blades.
Technology readiness level
This technology is currently at TRL 3, having demonstrated feasibility in laboratory environments. The next steps involve optimizing the EPD parameters and heat treatment conditions to enhance coating performance and scalability. Collaborations are sought for further validation and application testing, especially in performance benchmarking and friction coefficient characterization.
About Utah State University
Utah State University is a comprehensive public land‑grant research university (Carnegie R1) serving Utah through a flagship Logan campus and a statewide network. Industry connects through the Innovation Campus research park, where companies co‑locate with faculty and access shared facilities. USU’s Space Dynamics Laboratory, a US Space Force–sponsored University Affiliated Research Center, offers mission‑driven pathways for space and defense collaboration. Statewide Extension offices and field sites enable pilot deployments and real‑world validation across Utah’s diverse settings. Research is supported by competitive federal funding from agencies such as NSF, USDA, NASA, and DoD, with Technology Transfer Services managing IP, licensing, and SBIR/STTR support.
delivered to your inbox.