Surface modification of polymers and carbon-based materials by i

Details Surface modification of polymers and carbon-based materials by i Surface modification of polymers and carbon-based materials by i

1995-08-25

1997-11-04

Padgett, Marianne

Coating processes

Direct application of electrical, magnetic, wave, or...

Ion plating or implantation

427527, 427529, 427531, 427536, 427539, 427553, 427534, 427537, 427164, C23C 1412, C23C 1414, H05H 100, B05D 506

Patent

active

056837577

ABSTRACT:
This invention provides an improved process for surface modification of polymers, graphites and carbon-based composite materials, and improved surface-modified materials produced by the process. The preferred surface modification process of the present invention comprises the steps of: high dose single or multiple implantation of the substrate with energetic ions, including ions of at least one metal or semi-metal element able to form a stable, non-volatile oxide; and oxidative full or partial conversion of an upper portion of the implanted layer to a continuous, resistant oxide-enriched surface layer. The process may also comprise the additional implantation of a hardening non-metal element to participate in the formation of a glass-like surface layer or to form a carbonized, hardened sub-layer. Surface modified materials of the present invention have substantially improved resistance to erosion by atomic oxygen and to thermal cycling, as well as improved resistance to UV/air, improved surface hardness and wear resistance, tailored optical properties and altered surface energy, making them potentially useful in aerospace as well as other industries.

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