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Ternary ceramic thermal spraying powder and method of manufacturing thermal sprayed coating using said powder

Patent ·
OSTI ID:1600225

The invention describes a method for producing ternary and binary ceramic powders and their thermal spraying capable of manufacturing thermal sprayed coatings with superior properties. Powder contain at least 30% by weight ternary ceramic, at least 20% by weight binary molybdenum borides, at least one of the binary borides of Cr, Fe, Ni, W and Co and a maximum of 10% by weight of nano and submicro-sized boron nitride. The primary crystal phase of the manufactured thermal sprayed coatings from these powders is a ternary ceramic, while the secondary phases are binary ceramics. The coatings have extremely high resistance against corrosion of molten metal, extremely thermal shock resistance and superior tribological properties at low and at high temperatures.

Research Organization:
Mesocoat, Inc., Euclid, OH (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0003454
Assignee:
Mesocoat, Inc. (Euclid, OH)
Patent Number(s):
10,458,011
Application Number:
15/853,798
OSTI ID:
1600225
Country of Publication:
United States
Language:
English

References (3)

The Metallurgy of Alloy 625 conference January 1994
MoB/CoCr Cermet Coatings by HVOF Spraying against Erosion by Molten Al-Zn Alloy journal June 2007
Characterization and adhesion strength study of detonation-sprayed MoB–CoCr alloy coatings on 2Cr13 stainless steel substrate journal March 2010