Preparation of Ingots of Uranium-niobium Alloys
Title | Preparation of Ingots of Uranium-niobium Alloys PDF eBook |
Author | |
Publisher | |
Pages | 14 |
Release | 1956 |
Genre | Niobium alloys |
ISBN |
A study was made of the preparation of a uranium - 10 w/O niobium alloy by the bomb reduction of a suitable form of niobium and uranium tetrafluoride with calcium. A compound with a probable formula of Na2NbOF5 proved to be most satisfactory as the source of niobium. High yields and good metal-slag separations were obtained. Chemical analysis and density determinations showed the composition to be 10 ℗± 0.5 w/o niobium. Fifteen pounds of alloy were melted in BeO and cast into a graphite mold.
PREPARATION OF INGOTS OF URANIUM-NIOBIUM ALLOY.
Title | PREPARATION OF INGOTS OF URANIUM-NIOBIUM ALLOY. PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 1956 |
Genre | |
ISBN |
Metallurgical Studies of Niobium-uranium Alloys
Title | Metallurgical Studies of Niobium-uranium Alloys PDF eBook |
Author | John A. DeMastry |
Publisher | |
Pages | 50 |
Release | 1959 |
Genre | Niobium alloys |
ISBN |
In a continuing program, fabrication characteristics, physical and mechanical properties, and corrosion behavior in air, CO2, NaK, water, and steam were studied for . binary niobium fuel alloys containing 10, 20, 30, 40, 50, and 60 wt.% uranium To evaluate the effects of two major impurities of niobium, oxygen, and zirconium, three niobium base stocks, differing according to the level of these impurities, were used for each alloy. The impurity combinations employed were 600 ppm oxygen and 0.74 wt.% zirconium, 700 ppm oxygen, and 0.17 wt.% zirconium, and 300 ppm oxygen and 0.02 wt.% zirconium, Representative specimens of these alloys retained their hardness up to 900 deg C The 10 and 20 wt.% uraniuin alloys were successfully rorged at 2500 deg F and rolled at 1800 deg F to sheet. Fabrication characteristics of the remaining alloys are under investigation. The 0.2% offset yield strength of the 10 wt.% uranium alloy was 57,200 psi at room temperature and 36,900 psi at 1600 deg F. For the 20 wt.% uranium alloy it was 93,200 psi at room temperature and 71.000 psi at 1600 deg F. The corrosion life of all of the alloys in air at 572 deg F and in CO2 at 600 deg F was superior to that of unalloyed niobium. In 1000- hr exposures to 600 deg F water most of the alloys exhibited corrosion rates only two or three times greater than that of Zircaloy-2. All oi the alloys appear compatible with NaK at 1600 deg F. The impurity combinations employed in the base niobium appeared to have no effect on the corrosion behavior and mechanical properties of the alloys. (auth).
Uranium Production Technology
Title | Uranium Production Technology PDF eBook |
Author | Charles D. Harrington |
Publisher | |
Pages | 600 |
Release | 1959 |
Genre | Nuclear fuels |
ISBN |
Uranium: Alloys and compounds. 1936-1958
Title | Uranium: Alloys and compounds. 1936-1958 PDF eBook |
Author | United States Dept. of Commerce. Office of Technical Services |
Publisher | |
Pages | 16 |
Release | 1958 |
Genre | Uranium |
ISBN |
Nuclear Science Abstracts
Title | Nuclear Science Abstracts PDF eBook |
Author | |
Publisher | |
Pages | 516 |
Release | 1973 |
Genre | Nuclear energy |
ISBN |
Nuclear Science Abstracts
Title | Nuclear Science Abstracts PDF eBook |
Author | |
Publisher | |
Pages | 1110 |
Release | 1971-05 |
Genre | Nuclear energy |
ISBN |