The present invention comprises formulations and method for additive manufacturing comprising: a pot-stable photo-curable polymer; one or more fillers; and one or more additives, wherein the formulation cures into a polymer in six hours or less upon exposure to light. In certain examples, the additive manufacturing is a moldless method of additive manufacturing by preparing a formulation comprising: a pot-stable photo-curable polymer, one or more fillers, and one or more additives, and exposing the formulation to light in an amount that substantially cures the polymer in 6 hours or less.

An electrically operated propellant includes a perchlorate oxidizer and a water insoluble polymeric binder with a water solubility of less than 0.1 grams (g) per 100 grams water at 25° Celsius (° C.). The electrically operated propellant is substantially waterless with a water content of less than 10 weight % (wt. %) water based on total weight of the electrically operated propellant.

An electrically operated propellant includes a perchlorate oxidizer and a water insoluble polymeric binder with a water solubility of less than 0.1 grams (g) per 100 grams water at 25° Celsius (° C.). The electrically operated propellant is substantially waterless with a water content of less than 10 weight % (wt. %) water based on total weight of the electrically operated propellant.

The present invention comprises formulations and method for additive manufacturing comprising: a pot-stable photo-curable polymer; one or more fillers; and one or more additives, wherein the formulation cures into a polymer in six hours or less upon exposure to light. In certain examples, the additive manufacturing is a moldless method of additive manufacturing by preparing a formulation comprising: a pot-stable photo-curable polymer, one or more fillers, and one or more additives, and exposing the formulation to light in an amount that substantially cures the polymer in 6 hours or less.

The present invention comprises formulations and method for additive manufacturing comprising: a pot-stable photo-curable polymer; one or more fillers; and one or more additives, wherein the formulation cures into a polymer in six hours or less upon exposure to light. In certain examples, the additive manufacturing is a moldless method of additive manufacturing by preparing a formulation comprising: a pot-stable photo-curable polymer, one or more fillers, and one or more additives, and exposing the formulation to light in an amount that substantially cures the polymer in 6 hours or less.

The present application belongs to the field of compounds, and particularly relates to the perovskite-type compound ABX.sub.3. As a finding of the present application, the structural characteristics of the perovskite type enables the type of compound to be highly stable, thus overcoming the unsafety of an explosive having poor stability in the prior art. Meanwhile, the structural characteristics of the compound, such as rich energetic ligands, as well as the alternately arranged oxidizing energetic anions and reducing organic cations in the space, endow the compound with excellent performance on instantaneously releasing energy at detonation. The resulting three-dimensional structure allows the compound to not only have an energetic material effect but also overcome shortcomings of some existing energetic materials.

The present application belongs to the field of compounds, and particularly relates to the perovskite-type compound ABX.sub.3. As a finding of the present application, the structural characteristics of the perovskite type enables the type of compound to be highly stable, thus overcoming the unsafety of an explosive having poor stability in the prior art. Meanwhile, the structural characteristics of the compound, such as rich energetic ligands, as well as the alternately arranged oxidizing energetic anions and reducing organic cations in the space, endow the compound with excellent performance on instantaneously releasing energy at detonation. The resulting three-dimensional structure allows the compound to not only have an energetic material effect but also overcome shortcomings of some existing energetic materials.

A solid propellant rocket motor may comprise a core-burning propellant grain extending along a longitudinal axis of the solid propellant rocket motor between an exhaust end of the solid propellant rocket motor and a forward end of the solid propellant rocket motor, a first burn inhibitor layer surrounding the core-burning propellant grain, an end-burning propellant grain surrounding the first burn inhibitor layer, a second burn inhibitor layer surrounding the end-burning propellant grain, and an aperture at least partially defined by the first burn inhibitor layer. The end-burning propellant grain is ignited by the core-burning propellant grain via the aperture.

A solid propellant rocket motor may comprise a core-burning propellant grain extending along a longitudinal axis of the solid propellant rocket motor between an exhaust end of the solid propellant rocket motor and a forward end of the solid propellant rocket motor, a first burn inhibitor layer surrounding the core-burning propellant grain, an end-burning propellant grain surrounding the first burn inhibitor layer, a second burn inhibitor layer surrounding the end-burning propellant grain, and an aperture at least partially defined by the first burn inhibitor layer. The end-burning propellant grain is ignited by the core-burning propellant grain via the aperture.

A multispectral smoke obscurant composition effective in reducing transmittance in the visual, infrared, and ultraviolet regions of the electromagnetic spectrum, comprising at least one metal organic framework (MOF), at least one fuel, at least one oxidizer, and optionally one or more additives selected from the group consisting of binders, coolants, and accelerants. The MOF or MOF composite is present from about 10 to 90 weight percent of the smoke obscurant composition, while the fuel and the oxidizer in combination comprise about at least 10 weight percent of the smoke obscurant composition.