Innovative Solid Formulations for Rocket Propulsion

  • L. T. DeLuca Department of Aerospace Science and Technology (RET), Politecnico di Milano, I-20156 Milan, MI, Italy


Solid rocket propulsion enjoys several unique properties favoring its use in space exploration and military missions still for decades to come, in spite of being by far the most mature propulsion technology among those currently employed. Yet, solid rocket propellants also suffer a limited performance in terms of gravimetric specifi c impulse. Although many high-energy density materials have been identifi ed, most of them are far from being practically usable in the short range due to a variety of severe diffi culties, including cost considerations. Presently, no integrated vehicle designs make use of these potential propellant ingredients and formulations. Work is continuing worldwide and a broad overview will be discussed in this paper based on a joint international editorial effort just completed. After a quick historical survey, the current situation in terms of advanced solid oxidizers, metal fuels, and binder systems is scrutinized. Particular attention is paid to Ammonium Dinitramide (ADN)-based formulations to overcome the limitations of the currently used ones based on Ammonium Perchlorate (AP). The latter imply not only a limited gravimetric specifi c impulse but also a negative impact on the environment because of copious emissions of hydrochloric acid (HCl) as well as personal health because of perchlorate competition with iodide in entering the thyroid gland. Based on recent experimental investigations, due to its intrinsic ballistic properties, it turns out that ADN-based dual-oxidizer systems with Albased dual-metal fuels and inert or energetic binders are promising solutions for a variety of solid rocket propulsion aiming respectively at minimizing environmental impact (ADN + Ammonium Nitrate AN) or maximizing performance (ADN + AP). Yet, a lot of work remains to be done in order to upgrade these formulations to industrial applications. In particular, adequate analyses of manufacture, mechanical, and hazard properties are required.


[1]. L.T. De Luca, T. Shimada, V.P. Sinditskii, M. Calabro (eds) (2016) Chemical rocket propulsion: A comprehensive survey of energetic materials. ISBN 978-3-319-27746-2. DOI 10.1007/978-3-319-27748-6. Springer International Publishing AG, CH-6330 Cham, Switzerland.

[2]. P.D. Umholtz, The History of Solid Rocket Propulsion and Aerojet, AIAA Paper 99- 2927, 1999.

[3]. A. Davenas, J. Propul. Power 19 (6) (2003) 1108–1128.

[4]. L.T. De Luca, F. Maggi, S. Dossi et al, Chin. J. Explos. Propellants 36 (2013) 1–14.

[5]. A.I. Atwood, T.L. Boggs, P.O. Curran, T.P. Parr, D.M. Hanson-Parr, C.F. Price, and J. Wiknich, J. Propul. Power 15 (6) (1999) 740–747.

[6]. Z.P. Pak, “Some Ways to Higher Environmental Safety of Solid Rocket Propellant Application”,
AIAA Paper 93-755, 1993

[7]. M.A. Bohn. Review of some peculiarities of the stability and decomposition of HNF and ADN.

[8]. In: Proceedings of the 18th seminar new trends in research of energetic material, University of Pardubice, Czech Republic, 15–17 April 2015 664.

[9]. M.J. Tummers, A.E.D.M. van der Heijden, E.H. van Veen, Combust Flame 159 (2012) 882–886.

[10]. J. Louwers, G.M.H.J.L. Gadiot, A.J. Landman, T.W.J. Peeters, Th. H. van der Meer, D. Roekaerts,
Combustion and Flame Structure of HNF Sandwiches and Propellants, AIAA Paper 99-2359, 1999.

[11]. K.K. Kuo and R. Acharya (2012) Fundamentals of Turbulent and Multiphase Combustion, Chapter
09, Solid Propellants and Their Combustion Characteristics, John Wiley & Sons, Inc.

[12]. V.P. Sinditskii, V.Y. Egorshev, A.I. Levshenkov, and V.V. Serushkin, AIAA J. Propul. Power 22 (4) (2006) 769–776.

[13]. V.P. Sinditskii, V.Y. Egorshev, A.I. Levshenkov, and V.V. Serushkin, AIAA J. Propul. Power 22 (4) (2006) 777–785.

[14]. S. Cerri, “Characterization of the Ageing of Advanced Solid Rocket Propellants and First Step Design of Green Propellants”, PhD. Thesis, Politecnico di Milano, Milan, Italy, 2011.

[15]. S. Cerri, M.A. Bohn, K. Menke, and L. Galfetti, Propellants, Explos., Pyrotech. 39 (2) (2014) 192–204.

[16]. L.T. DeLuca, I. Palmucci, A. Franzin, V. Weiser, V. Gettwert, N. Wingborg, and M. Sjöblom, “New Energetic Ingredients for Solid Rocket Propulsion”. HEMCE-2014, 13-15 Feb. 2014, Trivandrum, India.

[17]. L.T. DeLuca, I. Palmucci, S. Dossi, F. Maggi, A. Franzin, D. Trache, W.Q. Pang, and V. Weiser. (2014) Combustion Features of ADN-Based Solid Rocket Propellants for Space Applications, Zel’dovich Memorial, Vol. 1, Torus Press, Moscow, Russia, pp. 108–116.

[18]. I. Palmucci, “ADN-Based Double Oxidizer Solid Propellants Formulations”, MSc. Thesis, Politecnico di Milano, Milan, Italy, 25 Jul 14.

[19]. N. Wingborg, S. Andreasson, J. de Flon, M. Johnsson, M. Liljedahl, C. Oscarsson, Å. Pettersson, and M. Wanhatalo, “Development of ADN-Based Minimum Smoke Propellants”, AIAA Paper 2010-6586, 2010.

[20]. J. de Flon, S. Andreasson, M. Liljedahl, C. Oscarson, M. Wanhatalo, and N. Wingborg, “Solid Propellants Based on ADN and HTPB”, AIAA Paper 2011-6136, 2011.

[21]. N. Wingborg, “Status of ADN-Based Solid Propellant Development”, Paper 07-01; Calabro, M., “Evaluation of the Interest of New ADN Solid Propellants for the Vega Launch Vehicle”, Paper 02-03; Weiser, W., Franzin, A., De Luca, L.T., Fischer, S., Gettwert, V., Kelzenberg, S., Knapp, S., Raab, A., and Roth, E., “Burning Behavior of ADN Solid Propellants Filled with Aluminum and Alane”, Paper 07-02; Pang, W.Q., “Effects of ADN on the Properties of Nitrate Ester Plasticized Polyether (NEPE) Solid Rocket Propellants”, Paper 07-03. Proceedings of 12-IWCP, Politecnico di Milan, Milan, Italy, 9-10 June 2014.

[22]. N. Wingborg and M. Calabro, Green Solid Propellants for Launchers, Space Propulsion conference, Rome, Italy, 02-06 May 2016, Paper SP2016_3125163

[23]. Clean Space. [cited 2016 July 09]; Available from:

[24]. M. Smith, and F. Valencia Bel, European Space Technology Harmonisation Technical Dossier on Mapping: Chemical Propulsion - Green Propellants. ESA/ESTEC TEC-MPC/2011/1041/MS, 2012.

[25]. C. Tagliabue, “Burning Behavior of ADN/AN based Solid Rocket Propellants”, MSc. Thesis, Politecnico di Milano, Milan, Italy, 2015.

[26]. V. Gettwert, C. Tagliabue, V. Weiser, and A. Imiolek, Green Advanced High Energy Propellants for Launchers (GRAIL) - First results on the Burning Behavior of AN/ADN Propellants, 6th European Conference for Aeronautics and Space Sciences (EuCASS 2015), Krakow, Poland.

[27]. M. Ross, D. Toohey, M. Peinemann, and P. Ross, Astropolitics 7 (2009) 50–82.

[28]. H.F. Stroo and C.H. Ward: In Situ Bioremediation of Perchlorate in Groundwater, Springer, New York, 2009.

[29]. A.M. Popescu and J.R. Collins: Perchlorate Contamination and Health Issues, Nova Science Publishers, New York 2011.

[30]. C. Tagliabue, V. Weiser, A. Imiolek, A.M. Bohn, T. Heintz, and V. Gettwert (2016) Burning Behavior of AN/ADN Propellants, 47th International Annual Conference of ICT, Paper 36, 28 Jun - 01 Jul 16, Karlsruhe, Germany.

[31]. W.Q. Pang, X.Z. Fan, W. Zhang, H.X. Xu, S.X. Wu, F.L. Liu, W.X. Xie, and N. Yan, Journal of Chemical Science and Technology 2 (2) (2013) 53–60.
How to Cite
L. DeLuca, “Innovative Solid Formulations for Rocket Propulsion”, Eurasian Chem. Tech. J., vol. 18, no. 3, pp. 181-196, Sep. 2016.