Energetic Material Composition Using Segmented Reducing Agent and Phosphorus Oxide
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Solution Overview
Problem
Conventional warheads using white phosphorus are unstable and require extensive safety measures due to its pyrophoric nature, complicating handling and storage, and there is a need for a more stable material that maintains performance in weapon applications.
Innovation Solution
A composition comprising a reducing material and an oxide of phosphorus, which reacts to generate heat and elemental phosphorus, used in a munition to neutralize targeted species or reduce structural integrity by producing differential pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If white phosphorus is used in conventional warheads, then heat generation capability is improved, but stability and safety during handling and storage deteriorate
Solution Approach 1:
The patent divides the white phosphorus system into two separate components: a reducing material (such as aluminum powder) and an oxide of phosphorus (such as phosphorus pentoxide). These components are stored separately in stable form and only combine during the intended use in the warhead, eliminating the pyrophoric instability of white phosphorus while preserving the heat generation capability through the exothermic reaction between the separated components.
Solution Approach 2:
The patent introduces an intermediary chemical system where the reducing material and oxide of phosphorus act as stable precursors that can be handled and stored safely. When activated, these intermediaries undergo exothermic reaction to produce the same thermal effects as white phosphorus, thereby mediating between the need for heat generation and the requirement for stable storage.
2Reliability
If white phosphorus is used to neutralize chemical agents, then neutralizing effectiveness is improved, but handling complexity and safety requirements increase
Solution Approach 1:
By segmenting the white phosphorus into separate reducing material and oxide components, the patent enables safe handling and storage procedures while maintaining the chemical reaction capability needed for neutralizing chemical agents. The separated components can be handled without special precautions, reducing operational complexity.
Solution Approach 2:
The patent changes the chemical parameters of the system by using stable reducing materials and phosphorus oxides instead of pyrophoric white phosphorus. This parameter change allows the same neutralizing function to be achieved with materials that have fundamentally different safety and handling characteristics.
3Stability of the object's composition
If a stable alternative to white phosphorus is sought, then safety during storage is improved, but performance equivalence may deteriorate
Solution Approach 1:
The patent changes the chemical composition parameters from white phosphorus to a combination of reducing material and phosphorus oxide, which are inherently more stable. By carefully selecting the proportions and types of these materials, the patent maintains the exothermic reaction performance needed for weapon applications while achieving superior storage stability.
Solution Approach 2:
The patent creates a composite energetic material system combining reducing material and phosphorus oxide in specific ratios. This composite approach allows optimization of both stability and performance, achieving a balance that neither component could provide alone while maintaining equivalence to white phosphorus in terms of thermal output and neutralizing capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition provides a stable alternative to white phosphorus, generating sufficient heat to neutralize biological or chemical agents and reduce structural integrity effectively, while being safer to handle and store.
Implementation Method 1
reacting a composition including a reducing material and an oxide of phosphorus to generate heat and to produce elemental phosphorus
Implementation Method 2
exposing the targeted species to the generated heat
Implementation Method 3
oxides of phosphorus resulting from the dispersion event and the burning event can combine with water to form phosphoric acid
Implementation Method 4
reacting a composition including a reducing material and an oxide of phosphorus to create a differential pressure
Data Source
AI summary
An energetic material composition includes a reducing material and an oxide of phosphorus. The reducing material includes a reducing metal and, in an optional hydride form, auto disperses products of the reaction by the formation of a gaseous product. The composition can be included in a cavity of a warhead. A method of neutralizing a targeted species and a method of reducing structural integrity of civil engineering structures by reacting the composition are also provided.