Method of modifying a surface

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873081

Renk, Timothy J ^[1]; Sorensen, Neil R ^[1]; Senft, Donna Cowell ^[1]; Thompson, Michael O ^[2]; Grabowski, Kenneth S ^[3]

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1. Albuquerque, NM
2. Ithaca, NY
3. Alexandria, VA

The present invention provides a surface modification method that provides beneficial changes in surface properties, can modify a surface to a greater depth than previous methods, and that is suitable for industrial application. The present method comprises applying a thin-film coating to a surface of a substrate, then subjecting the coated surface to an ion beam. The ion beam power pulse heats the coated surface, leading to alloying between the material in the coating and the material of the substrate. Rapid cooling of the alloyed layer after an ion beam pulse can lead to formation of metastable alloys and microstructures not accessible by conventional alloying methods or intense ion beam treatment of the substrate alone.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 6086726
• OSTI ID: 873081
• Country of Publication: United States
• Language: English

Related Subjects

method
modifying
surface
provides
modification
beneficial
changes
properties
modify
depth
previous
methods
suitable
industrial
application
comprises
applying
thin-film
coating
substrate
subjecting
coated
beam
power
pulse
heats
leading
alloying
material
rapid
cooling
alloyed
layer
lead
formation
metastable
alloys
microstructures
accessible
conventional
intense
treatment
power pulse
rapid cooling
surface modification
coated surface
method comprises
beam pulse
surface properties
film coating
beam power
comprises applying
method comprise
previous methods
metastable alloy
/204/148/156/250/427/438/