Empirical Observation and Scalable Manufacturing of Hyper-Tensile Auxetic Unfolding in BN-Doped Carbyne Aerogels

This paper details the synthesis, mechanical characterization, and industrial manufacturing pathway of a hyper-tensile carbon metamaterial. By strategically doping a 1D carbyne matrix with a 15% concentration of chiral Boron-Nitride (BN) nodes, we have engineered a macroscopic auxetic aerogel. Empirical and theoretical models reveal that the asymmetrical BN nodes induce an anomalous geometric unfolding under mechanical strain, allowing the material to elongate up to 500% beyond classical carbon fiber fracture limits while simultaneously reducing its effective bulk density. This artificially induced hyper-elastic phase offers a revolutionary, high-strength-to-weight ratio composite strictly optimized for civilian aerospace hulls, commercial aviation, and high-tension structural cabling.