USA As Represented by Secretary of the Navy

Lawrence Livermore National Security, LLC

Sarath K Menon

Joseph Collin Farmer

Raymond John Beach

Robert J Deri

Alexander M Rubenchik

Bassem S El-Dasher

Edward Ira Moses

Indranath Dutta

Terry McNelley

An apparatus for use in a friction stir operation, such as friction stir welding (FSW) or friction stir processing (FSP). The apparatus may have a rotating tool adapted to be plunged into a material, where the material is susceptible to being softened by heating. The rotating tool may further be adapted to be advanced along a surface of the material. An optical energy generating subsystem may be used to heat a portion of the material using optical energy as the tool is advanced along the material.

System and method for light assisted friction stir processing and welding of metallic and non-metallic materials

An article and a method of making surface modified synthetic diamond substes at temperatures below 500.degree. C. for electronic packaging applications are described. The article consists of a synthetic diamond substrate, the surface of which has been modified by providing an adherent thin coating of a ceramic (alumina) material so as to enable metallization of synthetic diamond by current industrial methods. The method of surface modification comprises deposition of a thin transition metal layer on the synthetic diamond substrate prior to low temperature reactive vapor deposition of aluminum followed by annealing in an oxygen atmosphere.

Surface modification of synthetic diamond for producing adherent thick

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Monterey, CA, United States of America

Sarath K Menon