Coating processes – Direct application of electrical – magnetic – wave – or... – Electromagnetic or particulate radiation utilized
Patent
1997-02-11
1998-05-05
King, Roy V.
Coating processes
Direct application of electrical, magnetic, wave, or...
Electromagnetic or particulate radiation utilized
427249, 427122, 427309, B05D 306
Patent
active
057471207
ABSTRACT:
Wear-resistant coatings composed of laser ablated hard carbon films, are deposited by pulsed laser ablation using visible light, on instruments such as microscope tips and micro-surgical tools. Hard carbon, known as diamond-like carbon (DLC), films produced by pulsed laser ablation using visible light enhances the abrasion resistance, wear characteristics, and lifetimes of small tools or instruments, such as small, sharp silicon tips used in atomic probe microscopy without significantly affecting the sharpness or size of these devices. For example, a 10-20 nm layer of diamond-like carbon on a standard silicon atomic force microscope (AFM) tip, enables the useful operating life of the tip to be increased by at least twofold. Moreover, the low inherent friction coefficient of the DLC coating leads to higher resolution for AFM tips operating in the contact mode.
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Voevodin et al, "Preparation of Amorphous Diamond-like Carbon by Pulsed Laser Deposition: a Critical Review", Surface and Coating Technology (1996) pp. 1-15.
Collins et al, Appl. Phys. Lett. 54(3) Jan. 1989, pp. 216-218.
Balooch Mehdi
McLean, II William
Siekhaus Wigbert J.
Carnahan L. E.
King Roy V.
Regents of the University of California
Sartorio Henry P.
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