Coating processes – Spray coating utilizing flame or plasma heat – Inorganic carbon containing coating – not as steel
Patent
1994-07-22
1995-09-26
Beck, Shrive
Coating processes
Spray coating utilizing flame or plasma heat
Inorganic carbon containing coating, not as steel
427446, B05D 110
Patent
active
054533031
ABSTRACT:
A process for depositing a diamond coating on a substrate at temperatures less than about 550.degree. C. A powder mixture of glassy carbon and diamond particles is passed through a high velocity oxy-flame apparatus whereupon the powders are heated prior to impingement at high velocity against the substrate. The powder mixture contains between 5 and 50 powder volume percent of the diamond particles, and preferably between 5 and 15 powder volume percent. The particles have a size from about 5 to about 100 micrometers, with the diamond particles being about 5 to about 30 micrometers. The flame of the apparatus provides a velocity of about 350 to about 1000 meters per second, with the result that upon impingement upon the substrate, the glassy carbon is phase transformed to diamond as coaxed by the diamond content of the powder mixture.
REFERENCES:
patent: 4842937 (1989-06-01), Meyer et al.
patent: 4988421 (1991-01-01), Drawl et al.
patent: 4992082 (1991-02-01), Drawl et al.
patent: 4999225 (1991-03-01), Rotolico et al.
patent: 5368897 (1994-11-01), Kurihara et al.
"Characterization of HVOF Sprayed Cr.sub.3 C.sub.2 Coating", M. Sasaki, et al, Thermal Spray: International Advances in Coatings Technology, May-Jun./1992 pp. 165-169.
"Abrasion Wear Resistance of Carbide Coatings Deposited by Plasma and High Velocity Combustion Processes", K. Niemi, et al, Thermal Spray: International Advances in Coatings Technology, May-Jun./1992 pp. 685-689.
"Elevated temperature erosion of carbide-metal composite coatings", B. Q. Wang et al, Thermal Spray: International Advances in Coatings Technology, May-Jun./1992 pp. 735-742.
"Ceramic Coatings Obtained by Means of HVOF Thermal Spraying" by J. M. Guilemany, pmi vol. 25, No. 4, 1993, pp. 176-179 (no month date).
"The Application of High Velocity Combustion Spraying" by A. R. Nicoll, et al., Int'l. Thermal Spray Conf. & Exp. May-Jun./1992. ASM Int'l. 1992.
"HVOF Process:The Hottest Topic in the Thermal Spray Industry" by Irving, et al., Welding Journal, Jul./1993, pp. 25-30.
Holcombe, Jr. Cressie E.
Seals Roland D.
Bareford Katherine A.
Beck Shrive
Breeden David E.
Hamel Stephen D.
Moser William R.
LandOfFree
Low substrate temperature deposition of diamond coatings derived does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low substrate temperature deposition of diamond coatings derived, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low substrate temperature deposition of diamond coatings derived will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1551190