A process of spraying controlled porosity metal structures against a substrate and articles produced thereby
A method of spraying a porous metal structure against a substrate in which a plume of nebulized metal droplets is directed toward the substrate from a coverging/diverging nozzle having a throat at which the metal is introduced and an exit from which the nebulized metal droplets leave entrained in a carrier gas to produce a layer having a thickness not greater than about 2 mils thick. The porous structure generally is detached afterward if the substrate is smooth, but may remain adherent to a rough, porous substrate, if desired. In another embodiment where the structure may be thicker than 2 mils, salt crystals are mixed with the metal to produce a composite of metal and salt crystals from which the salt crystals are dissolved with a suitable solvent to provide a porous metal structure. A plume of nebulized metal droplets mixed with a second metal or compound which is substantially immiscible with the metal droplets will produce a finely dispersed inhomogeneous mixture, then one metal or compound is selectively dissolved leaving a porous structure. Also disclosed are a membrane, a filter and an electrode.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC07-76ID01570
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7623851
- Application Number:
- ON: DE92015855; PAN: 7-623,851
- OSTI ID:
- 10156079
- Resource Relation:
- Other Information: PBD: 7 Dec 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
A low temperature process of applying high strength metal coatings to a substrate and article produced thereby
A low temperature process of applying high strength metal coatings to a substrate and article produced thereby