화학공학소재연구정보센터
Korean Chemical Engineering Research, Vol.52, No.2, 166-174, April, 2014
B-KNO3 점화제의 가속 노화 특성 연구
A Study on Acceleration Aging Characteristics of B-KNO3 Igniter
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초록
본 연구에서는 점화제로 사용되는 B-KNO3의 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 KNO3의 결정구조를 분석함으로써 노화에 끼치는 산화제 영향을 해석하였다. 결론적으로 산화제의 결정구조가 안정한 구조로 변화되었으며 활성화 에너지변화에 영향을 끼쳤다.
This research investigated the aging properties of the B-KNO3 system as the igniter. The B-KNO3 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 KNO3 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.
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