Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Composite Solid Propellants for Propulsion System Including a Yellow Iron Oxide (2)

황색산화철을 포함하는 혼합형 고체추진제의 특성에 관한 연구 (2)

  • Park, Sungjun (Propulsion Center, Daejeon Plant, Hanwha Corporation) ;
  • Kim, Kyungmin (Propulsion Center, Daejeon Plant, Hanwha Corporation) ;
  • Park, Jungho (Propulsion Center, Daejeon Plant, Hanwha Corporation) ;
  • Rho, Taeho (Propulsion Center, Daejeon Plant, Hanwha Corporation) ;
  • Choi, Sunghan (Propulsion Center, Daejeon Plant, Hanwha Corporation)
  • Received : 2019.12.02
  • Accepted : 2020.04.20
  • Published : 2020.06.30
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Abstract

The mechanical properties of the propellant with yellow iron oxide were slightly increased compared to the propellant with red iron oxide. The propellant with yellow iron oxide used two types of AP. As the ratio of small particles of AP increased, the burning rate increased. The propellant may be applied to the propellant under operating conditions of 17.5 mm/sec or less having a pressure index of 0.5. The burning rate downs in the mixer scale-up. The stress at maximum load of propellant decreased and the strain at maximum load increased in the mixer scale-up. The yellow iron oxide did not affect the adhesive force between the insulation/liner/propellant.

황색 산화철을 적용한 추진제의 기계적 특성은 적색산화철을 적용한 추진제와 비교하여 기계적물성이 다소 증가하였다. 또한 황색산화철을 적용한 추진제는 두 종류의 AP 입자를 사용하였으며 총량을 유지하고 작은 입자의 AP 비율 증가 시 연소속도가 증가하였다. 황색산화철을 첨가한 추진제는 압력 지수 값이 0.5인 17.5 mm/sec 이하의 운용조건에서 추진기관에 적용 가능하다. 혼합 믹서 Scale-up 시연소속도 감소, 최대인장강도 감소, 최대인장강도에서의 연신율은 증가하였다. 황색산화철은 내열재/라이너/추진제 사이의 접착력에는 큰 영향을 끼치지 않는다.

Keywords

References

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