인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The aging of the pyrotechnic materials, which is usually referred to as oxidation of metal fuels, causes chemical composition changes that can result in performance degradation. In this study, critical aging effects on zirconium potassium perchlorate (ZPP), one of the representative materials among NASA standard pyrotechnic initiators were provided. Especially, the hygrothermal aging effects on the thermal performance and lifespan of ZPP were identified via thermal analysis. In addition, reaction kinetics considering the hygrothermal aging effects is newly presented for the first time and the fact that high relative humidity (RH) conditions can lead to major chemical composition changes such as ‘fuel oxidation’ and ‘oxidizer decomposition’ in ZPP was found by using the X-ray photoelectron spectroscopy (XPS) technique. Such chemical composition changes gave rise to inadequate performance and led to negative feedback after all. Meanwhile, by substituting the extracted kinetic parameters and heat of reactions into the van’t Hoff equation, we have found that a high moisture environment (RH 100%) can reduce the lifespan of ZPP by up to 85%. In conclusion, the RH condition can act as one of the essential variables that critically affect the thermal performance of pyrotechnics.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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