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Hiroshimaites

All articles tagged with #hiroshimaites

science19 days ago•50 min saved

Fireball Forge: A New Iron-Silicon Alloy Emerges from Hiroshima Debris

Scientists studying Hiroshima fallout discovered a previously unknown iron–silicon alloy inside hiroshimaites, glassy particles formed in the fireball. The alloy’s structure is near-quasicrystalline and likely crystallized from rapidly cooled metallic vapors—a process not yet reproducible in labs. Similar blast-derived quasicrystals were found in Trinity’s trinitite, underscoring how extreme detonations can create unique materials. These materials serve as a time capsule for rapid alloy formation and could inform future alloy design and planetary impact research, per the Science Advances study led by Luca Bindi.

via Yahoo|

#hiroshima #hiroshimaites #iron-silicon-alloy

science25 days ago•26 min saved

Tiny Hiroshima Grain Reveals a Novel Silicon-Rich Iron Alloy

A glassy bead from Hiroshima Bay contains a microscopic grain that preserves a previously unknown silicon-rich alloy of iron, chromium, nickel, manganese, molybdenum, silicon, and aluminum, formed when city materials vaporized in the fireball and cooled rapidly. Using single-crystal X-ray diffraction, researchers found an ordered AlAu4-type structure, an unusual arrangement for iron-rich alloys, suggesting the blend of materials from urban debris can crystallize into exotic, highly ordered phases in seconds. While this could aid nuclear forensics by linking grains to blast conditions and temperatures, the finding is based on a single tiny grain and is not yet a practical alloy recipe.

via ZME Science|

#alloy #hiroshimaites #iron-chromium-nickel

physics-and-chemistry26 days ago•16 min saved

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.

via Gizmodo|

#hiroshima #hiroshimaites #multicomponent-alloy