Apparatus for making environmentally stable reactive alloy powders
Patent
·
OSTI ID:415719
Apparatus and method are disclosed for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloyants needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment. 7 figs.
- Research Organization:
- Iowa State University
- DOE Contract Number:
- W-7405-ENG-82
- Assignee:
- Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
- Patent Number(s):
- US 5,589,199/A/
- Application Number:
- PAN: 8-328,115
- OSTI ID:
- 415719
- Country of Publication:
- United States
- Language:
- English
Similar Records
Apparatus for making environmentally stable reactive alloy powders
Environmentally stable reactive alloy powders and method of making same
Environmentally stable reactive alloy powders and method of making same
Patent
·
Sun Dec 31 23:00:00 EST 1995
·
OSTI ID:870758
Environmentally stable reactive alloy powders and method of making same
Patent
·
Wed Dec 31 23:00:00 EST 1997
·
OSTI ID:871857
Environmentally stable reactive alloy powders and method of making same
Patent
·
Tue Sep 22 00:00:00 EDT 1998
·
OSTI ID:672632