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Title: Process for synthesizing compounds from elemental powders and product

Abstract

A process for synthesizing intermetallic compounds from elemental powders is described. 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. 25 figures.

Inventors:
;
Publication Date:
OSTI Identifier:
5440920
Patent Number(s):
US 5269830; A
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-045717
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Resource Relation:
Patent File Date: 26 Oct 1990
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; FABRICATION; IRON ALLOYS; HEAT TREATMENTS; INTERMETALLIC COMPOUNDS; ALLOYS; 360101* - Metals & Alloys- Preparation & Fabrication

Citation Formats

Rabin, B.H., and Wright, R.N. Process for synthesizing compounds from elemental powders and product. United States: N. p., 1993. Web.
Rabin, B.H., & Wright, R.N. Process for synthesizing compounds from elemental powders and product. United States.
Rabin, B.H., and Wright, R.N. Tue . "Process for synthesizing compounds from elemental powders and product". United States.
@article{osti_5440920,
title = {Process for synthesizing compounds from elemental powders and product},
author = {Rabin, B.H. and Wright, R.N.},
abstractNote = {A process for synthesizing intermetallic compounds from elemental powders is described. 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. 25 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {12}
}