This experiment uses a sealed glass sphere filled with tungsten carbide nanoparticles and driven by an electric field around 270 volts. Tungsten carbide is electrically conductive and extremely stable, allowing the particles to respond strongly to the applied field without breaking down or burning. When energized, the particles become charged and begin moving through the sphere rather than remaining settled. As the electric field oscillates, the nanoparticles levitate, attract, repel, and cluste
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This experiment uses a sealed glass sphere filled with tungsten carbid…
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Tungsten is a tough metal with the highest melting point of all known elements. Yet when it comes to 3D printing, it has a big problem – microcracks. In the high speed videos from laser powder bed fusion (a type of 3D printing), you can see the cracks form. New research from LLNL has shown that the main culprit is the metal’s transition from hot to cool. The results, made publicly available through the journal "Acta Materialia," allows the research community to pursue ways to mitigate microcrack
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Tungsten is a tough metal with the highest melting point of all known …
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FacebookLawrence Livermore National Laboratory
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Light bulb filament – how tungsten filament is made
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