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Field's metal

Fusible alloy made of a eutectic of bismuth, indium, and tin

Fusible alloy made of a eutectic of bismuth, indium, and tin

Field's metal, also known as Field's alloy, is a fusible alloy that becomes liquid at approximately 62 °C. It is named after its inventor, Simon Quellen Field. It is a eutectic alloy of bismuth, indium, and tin, with the following mass fractions: 32.5% Bi, 51% In, 16.5% Sn.

When prepared, Field's metal can be melted in hot water. Field's metal is costly because its major component indium is expensive, priced at around double the price of silver. Because it includes neither lead nor cadmium, it is much less toxic than Wood's metal. It can be used for small-run die casting and rapid prototyping.

This alloy has been investigated as a possible liquid metal coolant in advanced nuclear power system designs. Field's metal is also of interest to nanotechnology researchers.

Although it is much less dangerous to use than other commonly melted metals, such as lead or aluminium, contact with Field's metal in the liquid state can cause third-degree burns. Indium has also been associated with Indium lung in workers frequently exposed to indium processing.

Similar alloys

References

References

  1. Acton, Q. A.. (2013). "Heavy Metals—Advances in Research and Application: 2013 Edition". Scholarly Editions.
  2. (13 November 2013). "Desktop Foundry". Make.
  3. Scherer, M. R. J.. (2013). "Double-Gyroid-Structured Functional Materials: Synthesis and Applications". Springer International Publishing.
  4. Field, S. Q.. (2003). "Gonzo Gizmos: Projects and Devices to Channel Your Inner Geek". Chicago Review Press.
  5. "Field's Metal, 144 °F, 62 °C Low Melting Alloy".
  6. (May 2015). "Experimental Investigation of the Thermal Conductivity and Viscosity of Liquid In-Bi-Sn Eutectic Alloy Field Metal for use in a Natural Circulation Experimental Loop". 23rd International Conference on Nuclear Engineering, at Chiba, Japan.
  7. (2013). "Double-Gyroid-Structured Functional Materials: Synthesis and Applications". [[Springer Science+Business Media]].
  8. (2014). "Low-cost Nanomaterials: Toward Greener and More Efficient Energy Applications". [[Springer Science+Business Media]].
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