Electrically Mediated Deposition of Niobium for Coating Copper Elliptical Cavities

Period of Performance: 01/01/2009 - 12/31/2009


Phase 1 SBIR

Recipient Firm

Faraday Technology, Inc.
315 Huls Drive Array
Englewood, OH 45315
Principal Investigator
Firm POC


To improve the superconducting components of radio frequency devices used in particle accelerators, there is a need to develop techniques to create a layer of niobium on the interior of a copper elliptical cavity. This project will develop an electrically-mediated electro-deposition process to deposit niobium onto copper elliptical cavities from a room temperature ionic liquid plating bath. Electrical mediation will enhance the electro-deposition process through the control of additional process parameters. In Phase I, a small copper substrate will be coated with niobium and the thickness, uniformity, adhesion, and microstructure of the deposit will be evaluated. In Phase II, a layer of niobium will be deposited onto the interior surface of a copper elliptical cavity, and the performance of the cavity will be evaluated in radio frequency devices. Commercial Applications and other Benefits as described by the awardee An electrically-mediated electro-deposition process would be a simpler, and less expensive method for depositing high purity niobium coatings on superconducting radio frequency cavities. Areas of interest include both the energy and national security industries. Additionally, niobium is a biocompatible material, making niobium coatings a candidate for surgical implants.