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Newton's metal

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Newton's metal is a fusible alloy with a low melting point. Its composition by weight is 8 parts bismuth, 5 parts lead and 3 parts tin; its melting point is 97 °C.

Newton's metal is comparable to Cerrobend, but avoids its toxic cadmium content. This has encouraged its use for medical applications for easily shaped shielding during radiotherapy.[1]

References

  1. ^ "Newton's metal as a new home-made shielding material". Radiation Effects and Defects in Solids. 162 (1). Taylor & Francis: 53–57. January 2007. Bibcode:2007REDS..162...53K. doi:10.1080/10420150601045382.