Process for synthesizing compounds from elemental powders and product
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.
- DOE Contract Number:
- AC07-76ID01570
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5269830; A
- OSTI ID:
- 5440920
- Country of Publication:
- United States
- Language:
- English
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