Keywords
Citation
(2001), "Method of applying a corrosion-resistant coating", Anti-Corrosion Methods and Materials, Vol. 48 No. 4. https://doi.org/10.1108/acmm.2001.12848dad.006
Publisher
:Emerald Group Publishing Limited
Copyright © 2001, MCB UP Limited
Method of applying a corrosion-resistant coating
Method of applying a corrosion-resistant coating
Keywords: The University of Birmingham, Coatings, Patents, Corrosion resistance
In GB Patent 2351741, The University of Birmingham describes a corrosion-resistant coating, e.g. a zinc coating. It is applied to an article such as an Nd-Fe-B magnet, by embedding the article in a mass of particles containing a sublimable, corrosion-resistant material or a precursor thereof, and heating the embedded article at a temperature below the solidus temperature of the corrosion-resistant material under a pressure of less than 65Pa so as to cause a coherent layer of the corrosion-resistant material to be formed on the article by sublimation. Also disclosed is a method of coating a powder, such as Nd-Fe-B powder, with a layer, in which the powder is mixed with particles of a sublimable material such as zinc, or a precursor thereof. The resultant mixture is heated at a temperature below the solidus temperature of the particles under a pressure of less than 1 105Pa so as to cause a coherent layer of the sublimable material to be formed on the powder by sublimation.