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Liquid metal dealloying creates nanoporous silicon carbide at just 800°C
Researchers at Tohoku University have formed crystalline β-SiC at just 800°C using liquid metal dealloying, a technique previously limited to metals and intermetallics. Immersing a layered Mn5SiC precursor in molten bismuth selectively dissolves manganese, leaving a silicon-carbon framework that reorganizes into nanoporous β-SiC with interconnected nanoscale plates. First-principles calculations confirm the rearrangement is energetically favorable.
Oct 132 min read
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