Electric Explosion of Aluminum Metallized Film

Two types of capacitor-grade aluminum metallized polypropylene film were studied to investigate the factors that affect specific action integral and energy dissipation in the electrical explosion of a film, a phenomenon that occurs when a film is exposed to a high-density current pulse on the order of 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</sup> - 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">8</sup> A/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . The factors studied include film cross-sectional area, film length, film sheet resistance, and discharge circuit inductance. All film samples were subjected to a 2.5-kV capacitive discharge. The basic principles of the exploding-film phenomenon and the detailed effects of the stated factors are discussed.