Introducing LTDF-graphene and three target applications: critical minerals, rare-earth-free magnets and cooler power electronics
US-based Avadain has developed a novel graphene type, which it brands as Large, Thin, Defect-Free (LTDF) graphene, which is meant to position graphene around high value applications, including three strategic use cases: reducing dependence on foreign-sourced critical minerals, strengthening rare-earth-free iron nitride (Fe₂₁₆N₂) permanent magnets, and improving heat dissipation in high-power electronics.
LTDF graphene, SEM image
Why LTDF graphene’s physics are different
Avadain says that graphene’s performance ceiling is set by three parameters acting together: flake size, layer count and defect density. Most commercial graphene falls short on at least one of these, which is why products marketed as “graphene” often behave more like graphite or amorphous carbon in practice.
Large Surface Area: Every flake boundary acts as a scattering point for electrons, phonons and mechanical load, so larger, continuous flakes translate into fewer interruptions and performance closer to graphene’s intrinsic limits. Graphene nanoparticles sit at the opposite end of that spectrum: Avadain says its LTDF flakes run in the 25-100+ µm² range, roughly five orders of magnitude larger than the sub-micron nanoparticles sold by many graphene producers, which tend to clump and form discontinuous conductive pathways.
Source: https://www.graphene-info.com/introducing-ltdf-graphene-and-three-target-applications-critical-minerals-rare
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