12/4/25: Through the US Department of State, the Roux hosted leaders from Japan’s Maritime and Shipbuilding Industries to introduce them to cold spray.
10/1/25: Northeastern University completed the first year of Cold Spray Operator Training at our Brunswick, ME advanced manufacturing facility.
3/3/25: Our conference manuscript “Evaluation of Additively Manufactured Nd–Fe–B and Bi–Te via Tailored-Feedstock Low-Pressure Cold Spray” was published in TMS Proceedings, a graphical overview is below:
The Cold Spray Research Group at Northeastern University is a multi-campus initiative led by Professors Muftu and Ozdemir within the Department of Mechanical and Industrial Engineering. Our collaborative group leverages facilities and talent across our Boston, Burlington and Brunswick (Maine) campuses to address both fundamental and applied scientific challenges including applications to national defense.
Cold Spray is a powder-based manufacturing method that is in the general lexicon of additive manufacturing. In this method, powder is accelerated to high velocities (typically Mach 2 to 4) in a supersonic gas stream and bonds first to a substrate and then to one another upon impact. During this process, the gas and powder temperatures remain below the melting temperature of the powder, and particles are consolidated due to metallurgical bonding or mechanical interlocking. Excessive deformation experienced by the particles results in a near-perfect compaction with lower than 1% porosity. CSAM is interesting in that it can provide alternatives to nearly all the traditional manufacturing methods but in particular to casting and welding. Moreover, this method finds a great deal of use in repairing damaged components and joining dissimilar materials, a feat not easily achieved by other additive manufacturing operations.
See more here: https://coldspray.coe.neu.edu/about.html
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