Wisconsin Alumni Research Foundation

Materials & Chemicals
Materials Chemicals
Cold Spray Chromium Coating For Nuclear Fuel Rods
WARF: P170085US02

Inventors: Kumar Sridharan, Benjamin Maier, Greg Johnson, Edward Lahoda, Zeses Karoutas, Sumit Ray, Peng Xu

The Invention
A method is provided for coating the substrate of a component, such as a zirconium alloy cladding tube, for use in a water cooled nuclear reactor under normal operating conditions and under high temperature oxidation conditions. The method includes heating a pressurized carrier gas to a temperature between 200° C. and 1200° C., adding chromium or chromium-based alloy particles having an average diameter of 20 microns or less to the heated carrier gas, and spraying the carrier gas and particles onto the substrate at a velocity, preferably from 800 to 4000 ft./sec. (about 243.84 to 1219.20 meters/sec.), to form a chromium and/or chromium-based alloy coating on the substrate to a desired thickness.
Additional Information
For More Information About the Inventors
For current licensing status, please contact Emily Bauer at [javascript protected email address] or 608-960-9842