Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Arrhenius Kinetic Constants Analysis of BKNO3 under Accelerated Aging

가속노화에 따른 BKNO3의 아레니우스 동역학 상수 분석

  • Jang, Seung-gyo (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Kim, Jun-hyung (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Ryu, Byung-tae (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Hwang, Jung-min (The 4th R&D Institute - 1st Directorate, Agency for Defense Development)
  • Received : 2015.12.01
  • Accepted : 2016.05.23
  • Published : 2016.08.01
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Abstract

Arrhenius kinetic constants, the activation energy and the pre-exponential factor, of energetic material $BKNO_3$ are estimated using Differential Scanning Calorimetry (DSC). Different from the conventional way, the activation energy was estimated more precisely through DSC aging trial, and the consumed fraction by heat was calculated by comparing the integration of heat flow. We suggested the condition of accelerated aging test for the energetic material $BKNO_3$ and reconsidered the meaning of the thermal accelerated aging.

열분석기인 시차 주사 열량계를 이용하여 $BKNO_3$ 화약의 아레니우스(Arrhenius) 동역학 상수인 활성화 에너지와 Pre-Exponential Factor를 구하였다. 기존의 방법과 달리 고온 가속 노화와 DSC를 병행하여 보다 정밀한 활성화 에너지를 구하였고 열 유속의 적분값을 비교하여 저장 온도에 따른 분율을 구하였다. 이를 통하여 수명 예측을 위한 $BKNO_3$ 화약의 가속노화 시험 조건을 제시하고 열 가속노화에 관한 의미를 재고하였다.

Keywords

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