National Technology & Engineering Solutions of Sandia, LLC

Somuri V Prasad

Jiann-Cherng Su

Rand Garfield

Khalid Mikhiel Hattar

Jon-Erik Mogonye

A coating architecture is disclosed that includes a substrate having a surface finish Rof 0.3μ or finer, an intermediate layer overlying and in contact with the substrate; and a solid lubricant layer overlying and in contact with the intermediate layer. The test results of applying the coating architecture to a reciprocating hammer drill utilizing the coating is also disclosed.

Multilayer solid lubricant architecture for use in drilling tool applications

A coating architecture is disclosed that includes a substrate having a surface finish Rof 0.3&#x3bc; or finer, an intermediate layer overlying and in contact with the substrate; and a solid lubricant layer overlying and in contact with the intermediate layer. The test results of applying the coating architecture to a reciprocating hammer drill utilizing the coating is also disclosed.

Ion beam modification of noble metal electrical contact coatings can achieve suitable friction and wear behavior with inherently stable low ECR. For example, this method of producing Au electrical contact coatings can produce wear properties similar to electroplated hard Au, but without the environmental concerns due to stringent OSHA regulations on the use and disposal of toxic chemicals associated with Au electroplating baths. Integration of physical vapor deposition techniques with ion implantation can produce noble metal coatings with surfaces modified to achieve the desired balance between adhesion/friction/wear and electrical contact resistance on a commercial scale.

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Albuquerque, NM, United States of America

Somuri V Prasad