Modification of the burning rate of antimony/potassium permanganate pyrotechnic delay compositions

✍ Scribed by Michael W. Beck; Michael E. Brown

• Book ID: 103038262
• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 521 KB
• Volume: 66
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(86)90033-7

✦ Synopsis

The Sb/KMnO4 pyrotechnic system has been used as a starting point for introducing modifications, other than those of composition or fuel particle size, aimed at reducing the burning rate to as low a value as possible, for use in longperiod delay detonators. Both inert and reactive additives have been tested. Sb203 had the greatest slowing effect. Physical factors, such as the size and the material of the delay column container, become increasingly important at low burning rates. The cross-sectional area of the column may have to be increased, or a container of low thermal conductivity may have to be used to achieve low burning rates (1 mm s t or less).