Burst charge
Encyclopedia
In fireworks
, a burst charge is an energetic pyrotechnic mixture placed in a shell which is ignited when the shell reaches the desired height in order to pass fire to and spread the stars
. Burst charge compositions are usually coated onto rice hulls or other low-density fillers
, which increases the rate of combustion.
Fireworks
Fireworks are a class of explosive pyrotechnic devices used for aesthetic and entertainment purposes. The most common use of a firework is as part of a fireworks display. A fireworks event is a display of the effects produced by firework devices...
, a burst charge is an energetic pyrotechnic mixture placed in a shell which is ignited when the shell reaches the desired height in order to pass fire to and spread the stars
Pyrotechnic star
Pyrotechnic stars are pellets or simply pieces of pyrotechnic composition which may contain metal powders, salts or other compounds that, when ignited, burn a certain colour or exude a spark effect. They are a part of all projectile-type fireworks. The most common is the aerial shell. When...
. Burst charge compositions are usually coated onto rice hulls or other low-density fillers
Filler
In general, a filler is something that is used to fill gaps. Specialized meanings of the word "filler" include:* Filler , dietary fiber and other ingredients added to pet foods to provide bulk...
, which increases the rate of combustion.
Common burst charges
- Black powder
- Flash powderFlash powderFlash powder is a pyrotechnic composition, a mixture of oxidizer and metallic fuel, which burns quickly and if confined produces a loud report. It is widely used in theatrical pyrotechnics and fireworks and was once used for flashes in photography.Different varieties of flash powder are made from...
- H3
- Whistle mixWhistle mixWhistle mix is a general term to refer to any pyrotechnic composition that emits a whistling sound when pressed into a tube and ignited. It is used as a rocket propellant, particularly in small bottle rockets...