Abstract
Pulsed electrodynamic breakage of thin (∼20-nm-thick) aluminum films deposited onto polymer substrates have been experimentally studied. The character of film fracture depends on the level of supplied electric energy W. For 3.5 kJ/g < W < 4.3 kJ/g, discontinuities (striations) are formed in the transverse direction relative to the applied electric field. At high current densities on a level of ∼(1–3) × 1012 A/m2 and explosion times within 50–300 ns, the integral of action to explosion varies within (0.79–1.08) × 1017 A s/m2 depending on the rate of energy supply and differs from published data for relatively massive conductors.
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