Flame-assisted flash sintering

摘要

The present disclosure is directed to an apparatus and method of sintering inorganic powder coatings on substrates, and includes a flame and an electric plasma. The method is capable of being used in an open atmospheric environment. The substrate is electrically conductive and is used as one electrode while the flame is used as the other electrode that is moved over the areas of the powder coating to be sintered. An electrical current is used to cause a plasma produced through the flame, resulting in a combined energy and temperature profile sufficient for inorganic powder-powder and powder-substrate bonding. This method is referred to as “flame-assisted flash sintering” (FAFS).

主权项

1. A method of manufacturing a coating, the method comprising:
a. providing a substrate having an exposed first surface, b. providing a powder having a plurality of particles, c. disposing said powder to said first surface of said substrate to form a particle layer, d. creating a flame near or on a first electrode so that a high voltage current can pass from the flame, through the powder layer and substrate to a second electrode connected to said substrate, e. electrically energizing said electrodes causing a current flow through said flame and particle layer, and f. consolidating or sintering said particles to some degree on said substrate in said current flow area.