Chemical method to create metal films on metal and ceramic substrates
MetadataShow full item record
The disclosure provides a method for generating a metallic coating on a substrate using a mixture comprising a precursor compound typically of chromium oxide , a chemical agent typically comprising NHz, and an inert transport fluid . The precursor compound and chemical agent are generally in the form of particulates having mean diameters less than about 100 microns , and the transport fluid is present in an amount sufficient to facilitate application of the mixture to a substrate . The mixture is applied to a substrate and the coated substrate is heated to a temperature exceeding the decomposition temperature of the chemical agent , generating a reducing gas typically comprising CO, Hₓ, and/or NHₓ. In a particular embodiment , the precursor compound is CrO₂, Cr₃O₄, CrO, or mixtures thereof , the chemical agent is urea , and the coated substrate is placed in a reactor having an inert atmosphere and subjected to a temperature of about 700° C . for about 5 minutes while maintaining an inert gas flow through the reactor.
Showing items related by title, author, creator and subject.
An investigation of elevated temperature fatigue crack initiation in 2 1/4 Cr-1 Mo low alloy steel Keifer, Orion P. (Monterey, California. Naval Postgraduate School, 1984-06);Environmental effects in elevated temperature fatigue have teen extensively studied and reported in the literature for 2 1/4 Cr-1 Mo steel. The results of cycles to failure (lumped initiation and propagation life) ...
Menon, Sarath K.; Luhrs, Claudia C.; Arias-Monje, Pedro J.; Zea, Hugo; Osswald, Sebastian (American Scientific Publishers, 2016);This work aimed to produce nitrogen doped graphene from Graphite Oxide (GO) by combining the Expansion Reduction Synthesis (RES) approach, which utilizes urea as doping/reducing agent, with the use of an Atmospheric ...
Vibrational and chemical nonequilibrium in a stoichiometric turbojet engine using kerosine-type fuel DeCarli, Wiley Paul (Monterey, California. Naval Postgraduate School, 1972-03);The effects of vibrational and chemical nonequilibrium on turbine performance were investigated separately. The vibrational model was taken as a pure nitrogen expansion, and the chemical model was taken as the combustion ...