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Electric Arc and Electrochemical Surface Texturing TechnologiesSurface texturing of conductive materials can readily be accomplished by means of a moving electric arc which produces a plasma from the environmental gases as well as from the vaporized substrate and arc electrode materials. As the arc is forced to move across the substrate surface, a condensate from the plasma re-deposits an extremely rough surface which is intimately mixed and attached to the substrate material. The arc textured surfaces produce greatly enhanced thermal emittance and hold potential for use as high temperature radiator surfaces in space, as well as in systems which use radiative heat dissipation such as computer assisted tomography (CAT) scan systems. Electrochemical texturing of titanium alloys can be accomplished by using sodium chloride solutions along with ultrasonic agitation to produce a random distribution of craters on the surface. The crater size and density can be controlled to produce surface craters appropriately sized for direct bone in-growth of orthopaedic implants. Electric arc texturing and electrochemical texturing techniques, surface properties and potential applications will be presented.
Document ID
19980000589
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Banks, Bruce A. (NASA Lewis Research Center Cleveland, OH United States)
Rutledge, Sharon K. (NASA Lewis Research Center Cleveland, OH United States)
Snyder, Scott A. (Ohio Aerospace Inst. Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
August 1, 1997
Subject Category
Metallic Materials
Report/Patent Number
NASA-TM-107508
NAS 1.15:107508
E-10810
Meeting Information
Meeting: International Conference on Surface Modification Technologies
Location: Paris
Country: France
Start Date: September 8, 1997
End Date: September 10, 1997
Sponsors: Society of Metallurgy and Materials
Funding Number(s)
PROJECT: RTOP 505-23-2C
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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