Silicon-Rich Multicomponent Alloy Found in Hiroshima Blast Debris

A Science Advances study reports the discovery of a previously unknown, silicon-rich multicomponent alloy formed inside microscopic grains called ‘hiroshimaites’ created by the Hiroshima atomic blast. The highly ordered tiny crystal demonstrates that extreme, rapid quenching from nuclear detonations can forge new crystalline materials, potentially encoding diagnostic information about the device, environment, and detonation conditions, with implications for nuclear forensics and materials science.