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SOME OBSERVATIONS ON THE IDENTIFICATION OF COMPOUNDS IN THE SYSTEM URANIUM- ALUMINUM

Journal Article · · J. Inst. Metals
OSTI ID:4311869
The identification of three compounds encountered in uranium--aluminum alloys containing over 22 wt. % aluminuun has been studied. Three etching reagents were used: an electrolytic chromic acid/acetic acid bath, a 1% hydrofluoric acid solution, and a 50% nitric acid solution. Where two distinct compounds coexist in the sample, identification is easily achieved. Some difficulty is encountered with alloys in the (Al + UAl/sub 4/) phase field, where rapid cooling may suppress the formation of UAl/sub 4/ so that metastable UAl/sub 3/ is retained. In this case the use of polarized light can be helpful when the compound is present in fairly massive form. The etching characteristics of the various compounds are tabulated. (auth)
Research Organization:
Atomic Energy Research Establishment, Harwell, Berks, Eng.
NSA Number:
NSA-12-013876
OSTI ID:
4311869
Journal Information:
J. Inst. Metals, Journal Name: J. Inst. Metals Vol. Vol: 86
Country of Publication:
Country unknown/Code not available
Language:
English

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