| 摘要 |
This disclosure is directed to on-command, self-destructible, laminated honeycomb structures, e.g., printed circuit assemblies, having a honeycomb core the polygonal cells of which contain a material capable of rapid yet nonexplosive combustion e.g., incendiary or pyrotechnic material, and wherein the cell walls are substantially perpendicular to the longitudinal axis of substantially parallel facing sheets which can be secured directly or indirectly thereto. One of the facing sheets can constitute or contain a printed circuit and a portion or all of the incendiary material can be encapsulated to render it inactive at ambient conditions until the desired time for ignition. Ignition wells and igniters can be provided to communicate with a portion of the incendiary composition and the honeycomb cell walls can have small openings to interconnect some or all of the cells for migration of gases and flame propagation therebetween. An edge sealant, e.g., potting composition, can be used to aid in insulating the incendiary material from exposure to degradative influences and directionally channel the burning to the major desired area(s) to be destroyed, e.g., the facing sheet area(s) containing the printed circuitry.
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