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Ion beam modification of noble metals for electrical contacts

Patent ·
OSTI ID:1503293
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.
Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Number(s):
10,210,964
Application Number:
14/800,898
OSTI ID:
1503293
Country of Publication:
United States
Language:
English

References (10)

Ion beam modification of metals: Compositional and microstructural changes journal January 1989
Friction and wear of ion-implanted metals—A review journal December 1979
Ion beam modification of materials for industry journal August 1984
The ion implantation of helium into gold. A combined X-ray reflection spectroscopy and Rutherford backscattering study journal May 1986
Hardening by bubbles in He-implanted Ni journal January 2008
Compressive Properties of ⟨110⟩ Cu Micro-Pillars after High-Dose Self-Ion Irradiation journal November 2013
Tribological Properties of Ion-implanted steels journal June 1987
Some measurements of hardness, wear and stresses in ion implanted thin metallic films journal April 1981
Improvement of tribological properties by ion implantation journal April 1998
Study of processes at helium ion bombardment of thin silver films journal January 1978

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