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US 2026/0066145 A1Published application
Radiation shielding material, process for manufacture and apparatus
AssigneeGatan, Inc.
InventorsDouglas Whitfield NORTON, Colin Geoffrey TREVOR, Edward Michael JAMES
Life of this patent
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Abstract
An alloy consisting of bismuth, tin and antimony is described. In embodiments, the alloy may comprise substantially Sn=3.4-9.8 at % (2.0 %-6.0 % by weight), Sb=4.3-4.8 at % (2.6 %-2.9 % by weight), and Bi=85.6-92.4 at % (91.2 %-95.5 % by weight). Indium may replace the tin component. The alloy may be used as a radiation shield. A process for preparing and forming the alloy is described.
Claims11
An alloy comprising:
- Sn or In=3.4-9.8 at % (2.0%-6.0% by weight),
- Sb=4.3-4.8 at % (2.6%-2.9% by weight), and
- Bi=85.6-92.4 at % (91.2%-95.5% by weight).
An alloy comprising:
- Sn or In=9.8 at % (6.0% by weight),
- Sb=4.6 at % (2.9% by weight), and
- Bi=85.6 at % (91.2% by weight).
A process for preparing an alloy, comprising:
- combining in a crucible bismuth-antimony stock of 95% Bi and 5% Sb by weight with 3% by weight of Sn or In, and boric acid;
- heating the bismuth-antimony stock, the tin and the boric acid to a predetermined temperature to form a heated alloy;
- removing slag from the heated alloy;
- casting the heated alloy in a mold;
- cooling the mold in air for a predetermined period of time;
- removing the casting and quenching it.
3 more elements
Dependencies are inferred from the claim text.