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Apparatus and method for pulsed laser deposition of materials on wires and pipes

United States Patent

March 18, 2003
View the Complete Patent at the US Patent & Trademark Office
Methods and apparatuses are disclosed which allow uniform coatings to be applied by pulsed laser deposition (PLD) on inner and outer surfaces of cylindrical objects, such as rods, pipes, tubes, and wires. The use of PLD makes this technique particularly suitable for complex multicomponent materials, such as superconducting ceramics. Rigid objects of any length, i.e., pipes up to a few meters, and with diameters from less than 1 centimeter to over 10 centimeters can be coated using this technique. Further, deposition is effected simultaneously onto an annular region of the pipe wall. This particular arrangement simplifies the apparatus, reduces film uniformity control difficulties, and can result in faster operation cycles. In addition, flexible wires of any length can be continuously coated using the disclosed invention.
Fernandez; Felix E. (Mayaguez, PR)
University of Puerto Rico (San Juan, PR)
09/ 442,408
November 18, 1999
The subject matter of this application was made with the support of the U.S. government, under the following grants: No. N00014-96-1-0929, awarded by the Department of Defense; No. NCCW-0088, awarded by NASA; No. DE-FRO2-94ER757640, awarded by the Department of Energy; and No. EHR-9108775, awarded by the National Science Foundation. The U.S. government has certain rights in the invention.