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Title: 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:
 [1];  [1]
  1. (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) INEEL
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}
}

Patent:

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