Abstract
Long-term stability of the explosive charges in pyrotechnic mechanical devices (PMDs) is important in order to sustain the precision and accuracy of the explosion. We have been seeking robust materials against aging since self-generated aging by internal factors and induced aging by external factors, such as humidity (or extra oxygen source), might cause physical or chemical changes of the explosive charges to reduce their explosive power (or performance degradation). In this study, we precisely analyzed the aging properties of titanium hydride potassium perchlorate (THPP), one of the primary explosive charges. For the self-generated aging by internal factors, AKTS (advanced kinetics and technology solution) simulation using DSC (differential scanning calorimeter) profiles of different heating rates (1, 2, 4 and 8 °C/min) were used to calculate the initiation time of spontaneous reaction. The resulting initiation time at a storage temperature of 192 °C was ~200 years, demonstrating that THPP is hardly aged by itself. To investigate the induced aging by humidity, THPP samples aged under 100% RH (relative humidity) at 70 °C up to 16 weeks were characterized. Thermal analysis showed no loss of relative heat released (or no loss of explosive power) by the aging time, and almost constant reaction rate was maintained, indicating THPP is not affected by aging both thermodynamically and kinetically. This result was confirmed by direct TEM (transmittance electron microscope)-EDS (energy dispersion spectroscopy) observations as well, where no trace of oxide on the surface of titanium hydride (TiH2) appeared regardless of the aging time.
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07 June 2019
The article The robustness of titanium hydride potassium perchlorate (THPP) for long-term stability of pyrotechnic mechanical devices (PMDs), written by Junwoo Lee*, Hyuntae Choi*, Seyoung Lim*, Gil Hwan Ahn**, Jong Gyu Paik***, Byung Tae Ryu***, Yong Ha Kim****, and Yong Sun Won****,†, was originally published on the publisher’s internet portal (currently SPringerLink) on 08 February 2019 with misprinted DOI number, 10.1007/s11814-018-0228-8, due to the technical error from converting manuscript file from Microsoft Word to PDF. The correct DOI number for the article is 10.1007/s11814-019-0316-9.
References
L. J. Bement and H. A. Multhaup, AIAA J., 37, 357 (1999).
J. S. Lee, K. L. Lin, C. H. Lin, P. J. Ch’en, C. W. Huang and S. S. Chang, Thermochim. Acta, 173, 211 (1990).
A. Ulas, G. A. Risha and K. K. Kuo, Propellants Explos. Pyrotech., 31, 311 (2006).
N. Yan, B. Bao, F. Zheng and C. Li, Propellants Explos. Pyrotech., 41, 223 (2016).
K. S. Lai, AIAA, ASME, SAE, and ASEE Joint Propulsion Conference and Exhibition (1998).
R. P. Olmos, A. Rios, M. P. Martin, R. A. S. Lapa and J. L. F. C. Lima, Analyst, 124, 97 (1999).
E. E. Gilbert and G. P. Sollot, Chem. Eng. News, 58, 32 (1980).
L. W. Hunter, J. W. White, P. H. Cohen and P. J. Biermann, Johns Hopkins APL Tech. Dig., 21, 575 (2000).
C. S. Gorzynski and J. N. Maycock, J. Spacecraft Rockets, 11, 211 (1974).
B. J. Bellott, W. Noh, R. G. Nuzzo and G. S. Girolami, Chem. Commun., 22, 3214 (2009).
V. K. Patel, A. Ganguli, R. Kant and S. Bhattacharya, RSC Adv., 5, 14967 (2015).
D. N. Sorensen, A. P. Quebral, E. E. Broody and W. B. Sanborn, J. Therm. Anal. Calorim., 85, 151 (2006).
J. G. Paik, B. T. Ryu and M. Kwon, Korean Chem. Eng. Res., 52, 166 (2014).
A. Q. Le, L. Z. Sun and T. C. Miller, J. Propul. Power, 29, 299 (2013).
S. G. Hosseinia, S. M. Pourmortazavia and S. S. Hajimirsadeghi, Combust. Flame, 141, 322 (2005).
S. D. Brown, E. L. Charsley, S. J. Goodall, P. G. Laye, J. J. Rooney and T. T. Griffiths, Thermochim. Acta, 401, 53 (2003).
J. Sivan, Y. Haas, D. Grinstein, S. Kochav, G. Yegudayev and L. Kalontarov, Combust. Flame, 162, 516 (2015).
D. Ouyang, G. Pan, H. Guan, C. Zhu and X. Chen, Thermochim. Acta, 513, 119 (2011).
J. Lee, T. Kim, S. U. Ryu, K. Choi, G. H. Ahn, P. G. Paik, B. Ryu, T. Park and Y. S. Won, Sci. Rep., 8, 11745 (2018).
J. Lee, K. Choi, S. U. Ryu, G. H. Ahn, J. G. Paik, B. Ryu and Y. S. Won, Nanoscience and Nanotech. Lett., 10, 735 (2018).
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Lee, J., Choi, H., Lim, S. et al. The robustness of titanium hydride potassium perchlorate (THPP) for long-term stability of pyrotechnic mechanical devices (PMDs). Korean J. Chem. Eng. 36, 321–324 (2019). https://doi.org/10.1007/s11814-018-0228-8
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DOI: https://doi.org/10.1007/s11814-018-0228-8