Computational Determination of the Specific Impulse of Solid Rocket Propellant Compositions of closo-Dodecaborate ([B₁₂H₁₂]^2‒) Salts with HTPB Binder and Ammonium Perchlorate as an Oxidizer

• Autorzy: Rao Muddamarri Hanumantha

Identyfikatory

DOI

10.22211/cejem/176917

• Języki publikacji: EN

Abstrakty

EN

Boron (B) powder in elemental form is a very attractive high-energy material and it is a metalloid chemical element. B powder has the second highest heat of explosion of any element that can be adopted as an energetic material in dealing with propellants and explosives. In practical situations, B has problems with ignition and combustion due to the formation of a B₂O₃ layer on its surface. B cannot burn easily; it requires ultra-pure oxygen during the combustion process and also undergoes agglomeration due to which incomplete combustion of the B particles in the propellant composition occurs. Hence in order to address these issues, we introduced closo-dodecaborate ([B₁₂H₁₂]^2‒) salts into a solid rocket propellant composition instead of B powder. In the present work, three solid rocket propellant compositions based on closo-dodecaborate salts were theoretically investigated. The specific impulse (I_sp) was calculated for three closo-dodecaborate [B₁₂H₁₂]^2‒ based propellant compositions using the EXPLO5 code version V6.03. The performance values of the closo-dodecaborate [B₁₂H₁₂]^2‒ salts based propellant compositions were compared with those of pure aluminium (Al)-based composite propellant. Using the EXPLO5 code (V6.03); hydroxyl-terminated polybutadiene (HTPB) and ammonium perchlorate (NH₄ClO₄, AP) were used as binder and oxidizer respectively. closo-Dodecaborate salts-HTPB-AP formulations have good theoretical performance; it was observed that the presence of a closo-dodecaborate salt in the propellant composition can lead to very good performance, and they are potential candidates as fuels and/or fuel additives in propellant compositions for missile and rocket applications.

Słowa kluczowe

EN

closo-dodecaborate salts; 3,3′-(but-2-yne-1,4-diyl)bis(1-methyl-1H-imidazol-3-ium)dodecaborate; bis(triethylammonium)dodecaborate; bis(butylmethylimidazolium)dodecahydroborate; EXPLO5; specific impulse

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2023
• Tom: Vol. 20, no. 4
• Strony: 386--399
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Rao Muddamarri Hanumantha

• Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad-500046, India

Bibliografia

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