Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Tensile and Compressive Strength Characteristics of Aluminized Paraffin Wax Fuel for Various Particle Size and Contents

파라핀/알루미늄 연료의 알루미늄 입자크기 및 함유비 변화에 따른 인장 및 압축강도 특성 연구

  • Ryu, Sunghoon (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Han, Seongjoo (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Kim, Jinkon (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Moon, Heejang (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Kim, Junhyung (Agency for Defense Development) ;
  • Ko, Seung Won (Agency for Defense Development)
  • Received : 2016.08.03
  • Accepted : 2016.09.10
  • Published : 2016.10.01
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Abstract

Tensile and compressive strength tests were conducted to investigate the mechanical characteristics of aluminized paraffin wax fuel for hybrid gas generator applications. Mixtures of 0 wt%, 10 wt% and 30 wt% nano aluminum paraffin coupons as well as 5 wt%, 10 wt% and 15 wt% micro aluminum paraffin coupons were used. The average particle size of 100nm and of $8{\mu}m$ mixed each with microcrystalline paraffin wax(Sasol 0907) were chosen for the base specimens where the tensile strength test followed the ASTM-D638 specimen standard while the compressive strength test followed the ASTM D575-91. It was found that nano based specimens increased both the tensile and compressive strength enhancing the mechanical behavior of paraffin wax whereas the micro based specimens gave still less influential effect.

본 연구에서는 하이브리드 가스 발생기용 파라핀/알루미늄 왁스 연료의 기계적 특성 파악을 위한 인장 및 압축강도 실험을 수행하였다. 혼합된 알루미늄 입자의 크기와 첨가량에 따른 기계적 특성을 파악하기 위해 10 wt%, 20 wt%, 30 wt%의 나노 입자 첨가 시편과 5 wt%, 10 wt%, 15 wt%의 마이크로 입자 첨가 시편을 사용하였다. 평균입도 100 nm 및 $8{\mu}m$ 크기의 알루미늄 입자와 Sasol사의 미정질 파라핀 왁스(Sasol 0907)를 이용하였고, 인장시험과 압축 시험에 사용된 시편은 각각 ASTM-D638, ASTM D575-91 규격에 따라 제작하였다. 나노 입자의 첨가는 시편의 인장 및 압축강도를 크게 향상시키나 마이크로 입자의 첨가는 상대적으로 인장 및 압축강도의 증가에 미치는 영향이 미미한 것으로 파악되었다.

Keywords

References

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