Context
Researchers have identified a previously unknown metallic alloy embedded in hiroshimaites—glass-like particles formed during the 1945 Hiroshima atomic bombing. The discovery, published in Science Advances, highlights how extreme high-temperature events can create entirely new materials.
Explanation
- Extreme-event materials are substances formed under exceptionally high temperature, pressure, or energy conditions such as nuclear explosions, meteorite impacts, or lightning strikes.
- The newly discovered alloy was found inside hiroshimaites, glassy beads formed when the atomic blast vaporised soil, concrete, steel, and other materials, which later cooled rapidly.
- The alloy contains iron, chromium, nickel, manganese, molybdenum, silicon, and aluminium, arranged in a unique crystal structure.
- Scientists believe it formed through ultrafast quenching, where molten material cools so rapidly that unusual atomic arrangements are preserved.
- Such discoveries improve understanding of high-entropy alloys, quasicrystals, plasma physics, materials science, and nuclear forensics, with potential applications in advanced engineering and extreme-environment technologies.
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