The more spherical the void, the higher the internal pressure - temperature upon collapse.
Chemically formed gas voids are not ideally
spherical or uniform in size.
Time, temperature, and depth alter the shape
and size of chemically gassed voids. As a consequence, detonation performance and
consistency in the explosives is sacrificed.
Chemical gassing also disrupts the emulsion
phase which diminishes detonation. Worse yet,
gassing can create toxic fumes.
Chemically gassed emulsions are easier and cheaper to make, transport, and store. However, the loss of performance, safety,
and control is seldom worth the savings.
During the primary phase of detonation,
the voids are rapidly compressed; creating extremely high temperatures. This causes the emulsion to decompose to a gas state.
Voids are typically applied by chemical
gassing or adding closed celled voids / micro-spheres. We use high strength glass microspheres.
Microspheres cost a little more, but certainly provide more bang-for-the-buck.Without fail, they offer the best consistency and
Unlike chemical gassing, microspheres are
not effected by time, temperature, or depth.
Microspheres create a more defined
spherical void in the emulsion than the gassed