Abstract
Powdered mixtures of titanium and boron can undergo a highly exothermic reaction which is virtually gasless. As a result of this Ti-B mixtures find widespread applications in conventional pyrotechnic delays and heat sources. However, the burning rate of such devices can be affected by particle size distribution, degree of blending and the presence of an inhibiting oxide layer on the surface of the reactants. Pyrotechnic delays composed of multilayer coatings of titanium and boron have been deposited directly by magnetron sputtering. This is a novel application of such techniques and offers solutions to many of the problems encountered with conventional pyrotechnics. The deposition and analysis of Ti/B multilayer pyrotechnic coatings deposited by magnetron sputtering are described.
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