Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Acceleration Aging Characteristics of B-KNO3 Igniter

B-KNO3 점화제의 가속 노화 특성 연구

  • Received : 2013.07.31
  • Accepted : 2014.02.20
  • Published : 2014.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

This research investigated the aging properties of the $B-KNO_3$ system as the igniter. The $B-KNO_3$ system showed the degradation in ignition properties depending on the method and period of storage. It should be found out the cause of the degradation to predict the reliability of the igniters. The changes of the properties by the degradation after aging tests were analyzed by microstructure analysis, XRD analysis and thermal analysis using DSC. It was found out that the lattice parameters of the $KNO_3$ as the oxidizer in the ignition system was changed into the JCPDS values as the aging time increased. Conclusively, the changes of the crystal structure of oxidizer affected the activation energy increasing as aging time increased.

본 연구에서는 점화제로 사용되는 $B-KNO_3$의 가속노화 실험에 따른 특성변화를 고찰하였다. 점화제는 보관 방법이나 보관기간에 따라 점화 효율이 저하되는 경향이 있으며 안정된 사용을 위해서는 이에 대한 명확한 이해가 필요하다. 따라서 노화에 대한 원인 규명을 위해 가속화 시험 시편의 미세구조와 결정구조 및 열분석을 수행하였으며 점화 특성에 끼치는 영향성을 규명하고자 하였다. 산화제로 첨가된 $KNO_3$의 결정구조를 분석함으로써 노화에 끼치는 산화제 영향을 해석하였다. 결론적으로 산화제의 결정구조가 안정한 구조로 변화되었으며 활성화 에너지변화에 영향을 끼쳤다.

Keywords

References

  1. Robertson, W. E., "Ignitor Material Consideration and Application," American Institute of Aeronautics and Astronautics, 72(Nov.-Dec.) 1195 (1972).
  2. "Solid Rocket Motor Ignitor," NASA Space Vehicle Design Criteria SP-8051(1971).
  3. Umbrajkar, S. M., Schoenitz, M. and Dreizin, E. L., "Exothermic Reactions in Al-CuO Nanocomposites," Thermochim. Acta, 451(1-2), 34-43(2006). https://doi.org/10.1016/j.tca.2006.09.002
  4. Kwon, J., Ducr, J. M., Alphonse, P., Bahrami, M., Petrantoni, M., Veyan, J. F., Tenailleau, C., Estve, A., Rossi, C. and Chabal, Y. J., "Interfacial Chemistry in Al/CuO Reactive Nanomaterial and Its Role in Exothermic Reaction," ACS Appl. Mater. Interfaces, 5(3), 605-613(2013). https://doi.org/10.1021/am3019405
  5. Comyn, R. H., "Pyrotechnic Research at DOFL, part II. PyroTechnic Delays," AD report 273042(1962).
  6. Pretz, A., "Investigation of Pyrotechnic MTV Composition for Rocket Motor Ignitor," American Institute of Aeronautics and Astronautics, 82(June), 1189(1982).
  7. Valenta, F. J., "MTV as a Pyrotechnic Composition for Solid Propellant Ignition," 13th Pyrotechnic Seminar, Grand Junction, CO, USA, July(1988).
  8. Yano, Y., "Condensed Phase Reaction of Boron with Potassium Nitrate," Propellant, Explosive, Pyrotechnics, 14(5), 187-189(1989). https://doi.org/10.1002/prep.19890140503
  9. Chen, S., Liu, J. T. and Zeng, Q., "Advanced Kinetic Tools for the Evaluation of Decomposition Reactions," J. Therm. Anal. Calorim., 80(1), 229-236(2005). https://doi.org/10.1007/s10973-005-0641-6
  10. Berger, B., "Parameters Influencing the Pyrotechnic Reactio," Propellant, Explosive, Pyrotechnics, 30(1), 27-35(2005). https://doi.org/10.1002/prep.200400082
  11. Bhingarkar, V. and Singh, H., "Influence of Cellulosic Binders on Sensitivity and Combustion Behaviour of B-$KNO_3$ Ignition System," Defence Science Journal, 56(3), 345-351(2006). https://doi.org/10.14429/dsj.56.1898
  12. Cho, K. H. and Kim, E. Y., "Life Expantancy Estimation of the Propellants KM 10 Using High Temperature Accelation Aging Test and Stockpile Analysis Test," Korean Chem. Eng. Res.(HWAHAK KONGHAK), 48(6), 695-699(2010).
  13. Rajendran, A. G., Chandrabhanu, K. S., Rani Krishnan, K. R. and Kartha, C. B., "Effect of Aging on the Calorific Value and Ignitability of Boron/Potassium Nitrate Charge," 3rd International High Energy Material Conference and Exhibit, Thirubananthapuram. India, 419-422(2000).
  14. Weiser, V., Roth, E. and Eisenreich, N., "Burning Behavior of Different B/$KNO_3$ Mixture at Pressure up to 4 MPa," 37th International Annual Conference of ICT on Energetic Materials, Kahlsruhe, Germany(2006).
  15. "Pallets/Granules Boron/Potassium Nitrate," MIL-P-46994B(1982).
  16. Ozawa, T., "Kinetic Analysis of Derivative Curves in Thermal Analysis," J. Thermal Anal., 2, 301-324(1970). https://doi.org/10.1007/BF01911411
  17. Lui, Q. Y., Bei, Y. L., Qu, G. B. and Ding, Y. J., "Thermal Dicomposition Kinetics of 5-Fluorouacil from Thermogravimetric Analysis," Korean J. Chem. Eng., 25(5), 180-181(2008).
  18. Lu, H. M. and Hardy, J. R., "First-principles Study of Phase Transitions in $KNO_3$," Phys. Rev. B 44, 7215-7224(1991). https://doi.org/10.1103/PhysRevB.44.7215

Cited by

  1. under Accelerated Aging vol.20, pp.4, 2016, https://doi.org/10.6108/KSPE.2016.20.4.034
  2. Study on the Aging Mechanism of Boron Potassium Nitrate (BKNO3) for Sustainable Efficiency in Pyrotechnic Mechanical Devices vol.8, pp.1, 2018, https://doi.org/10.1038/s41598-018-29412-8
  3. Thermodynamic Analysis on the Aging of THPP, ZPP and BKNO3 Explosive Charges in PMDs vol.12, pp.2, 2019, https://doi.org/10.3390/en12020209
  4. The robustness of titanium hydride potassium perchlorate (THPP) for long-term stability of pyrotechnic mechanical devices (PMDs) vol.36, pp.3, 2019, https://doi.org/10.1007/s11814-018-0228-8
  5. 격벽착화기 노화특성 연구 vol.24, pp.2, 2014, https://doi.org/10.6108/kspe.2020.24.2.043
  6. Boron Recycling from Obsolete Propulsion Engine vol.11, pp.12, 2014, https://doi.org/10.1007/s12649-019-00918-0