Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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A study on the Properties of Solid Propellant Containing FeOOH Combustion Catalyst: Effect of FeOOH Calcination Temperature

연소촉매 FeOOH를 포함하는 고체추진제 특성 연구: FeOOH의 소성온도 영향

  • Received : 2020.06.23
  • Accepted : 2020.10.12
  • Published : 2020.12.31
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Abstract

This study is about the changes in mechanical and combustion properties after the production of the combustion catalysts FeOOH and Fe2O3 having the same manufacturing method and application to the solid propellant. In order to make the FeOOH and Fe2O3 having the same manufacturing method, FeOOH was calcined at 200, 300, 400, 500℃ for 2 h, and the XRD results were confirmed. In addition, after applying the prepared catalyst to a solid propellant, it exhibited change in mechanical and combustion properties. As result of XRD, FeOOH was confirmed to change the crystal phase from Geothtie to Hematite between 200 and 300℃. The stress of the propellant hardly changed as the calcination temperature of the combustion catalyst incredsed, but the elongation increased when catalyst was calcined. the maximum value at 300℃. The burning rate confirmed that FeOOH without calcination was about 3~5% faster than other catalysts.

본 연구는 동일한 제조법을 가지는 연소촉매 FeOOH와 Fe2O3를 제조하여 고체추진제에 적용 후 기계적 물성 및 연소 특성의 변화에 관한 내용이다. 동일한 제조방법을 가지는 FeOOH와 Fe2O3를 만들기 위하여 FeOOH를 200, 300, 400, 500℃에서 2시간 동안 소성시킨 후 XRD 결과를 확인하였다. 또한, 제조된 촉매를 고체추진제에 적용 후 기계적 물성 및 연소 특성의 변화를 나타내었다. XRD 결과상으로 FeOOH는 200~300℃사이에서 Geothite에서 Hematite로 결정상이 변화하는 것을 확인하였다. 추진제의 응력은 연소촉매의 소성온도가 높아짐에 따라 변화가 거의 없지만 연신율은 소성을 진행한 촉매를 적용 시 증가하였다. 연소속도는 소성을 하지 않은 FeOOH가 다른 촉매에 비해 약 3~5% 빠르다는 것을 확인하였다.

Keywords

References

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