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Illustration of grain refinement for the hard metal surrounded by soft... | Download Scientific Diagram
![Cutting sodium metal. Freshly cut, shiny surface of a sample of sodium metal. Sodium (Na) is an alkali metal. It is soft enough to be cut with a knife Stock Photo - Cutting sodium metal. Freshly cut, shiny surface of a sample of sodium metal. Sodium (Na) is an alkali metal. It is soft enough to be cut with a knife Stock Photo -](https://c8.alamy.com/comp/2ACKXCJ/cutting-sodium-metal-freshly-cut-shiny-surface-of-a-sample-of-sodium-metal-sodium-na-is-an-alkali-metal-it-is-soft-enough-to-be-cut-with-a-knife-2ACKXCJ.jpg)
Cutting sodium metal. Freshly cut, shiny surface of a sample of sodium metal. Sodium (Na) is an alkali metal. It is soft enough to be cut with a knife Stock Photo -
![MIT engineers develop a soft, printable, metal-free electrode | MIT News | Massachusetts Institute of Technology MIT engineers develop a soft, printable, metal-free electrode | MIT News | Massachusetts Institute of Technology](https://news.mit.edu/sites/default/files/images/202306/MIT_Hydro-Electrode-01-PRESS.jpg)