Process for synthesizing compounds from elemental powders and product
Abstract
A process for synthesizing intermetallic compounds from elemental powders. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe.sub.3 Al and FeAl.
- Inventors:
-
- Idaho Falls, ID
- Issue Date:
- Research Org.:
- EG & G IDAHO INC
- OSTI Identifier:
- 869062
- Patent Number(s):
- 5269830
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
- DOE Contract Number:
- AC07-76ID01570
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; synthesizing; compounds; elemental; powders; product; intermetallic; initially; combined; ratio; approximates; stoichiometric; composition; compound; mixed; formed; compact; heat; treated; controlled; rate; heating; exothermic; reaction; elements; initiated; treatment; performed; conditions; ranging; vacuum; pressureless; sintering; compression; hot; pressing; produce; desired; densification; preferred; form; aluminide; feal; controlled rate; exothermic reaction; heat treatment; heat treated; intermetallic compound; hot pressing; preferred form; pressureless sintering; controlled conditions; elemental powders; intermetallic compounds; hot press; stoichiometric composition; metallic compound; /75/419/
Citation Formats
Rabin, Barry H, and Wright, Richard N. Process for synthesizing compounds from elemental powders and product. United States: N. p., 1993.
Web.
Rabin, Barry H, & Wright, Richard N. Process for synthesizing compounds from elemental powders and product. United States.
Rabin, Barry H, and Wright, Richard N. Fri .
"Process for synthesizing compounds from elemental powders and product". United States. https://www.osti.gov/servlets/purl/869062.
@article{osti_869062,
title = {Process for synthesizing compounds from elemental powders and product},
author = {Rabin, Barry H and Wright, Richard N},
abstractNote = {A process for synthesizing intermetallic compounds from elemental powders. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe.sub.3 Al and FeAl.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}
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