Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 127, Issue -, Pages 29-47Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2022.02.047
Keywords
Additive manufacturing; Energetic materials; Nanothermite; Propellant
Funding
- National Natural Science Foun-dation of China [21875020, 22075024]
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Additive manufacturing (AM), or 3D printing, allows for fast and accurate fabrication of energetic materials with complex structures. Different AM techniques can create high-energy materials with controllable nanostructures and uniformly dispersed ingredients, while retaining their combustion and mechanical properties.
Additive manufacturing (AM), also called three-dimensional (3D) printing, has been developed to obtain energetic materials within the past decade. 3D printing represents a family of flexible manufacturing techniques that enable fast and accurate fabrication of structures with complex 3D features and a broad range of sizes, from submicrometer to several meters. Various methods have already been explored, including templating, melting extrusion, inkjet printing and electrospray methods. It was demonstrated that the structure achieved by AM could be used to manipulate the reactivity of energetic or reactive materials by changing the flow of gases and entrained particles via architecture. By employing different AM techniques, energetic materials with controllable nanostructures and uniformly dispersed ingredients can be prepared. It is exciting to tailor the energy release without defaulting to change the formulation of the conventional method. The combustion and mechanical properties of conventional energetic materials can be retained at the same time. In this review, the preparation and characterization of AM energetic materials that have been developed in the last decade are summarized. Various AM techniques used in the fabrication of energetic materials are compared and discussed. In particular, formulations of energetic materials applied in AM, metallic fuels, binders and energetic fillers and their advantages in terms of combustion efficiency and other properties are proposed. ?? 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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