2019年7月15日 · Ageing of pyrotechnic substance, primarily fuel oxidisation, can cause changes in composition that degrade their performance. This study investigates the effect of ageing on zirconium potassium...

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2021年6月30日 · 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.

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2019年7月15日 · In the hygrothermal ageing process, these results indicate that the exothermic reaction of the unreacted KClO 4 (Peak 4) is the most significant reaction. Illustration of the relationship between...

2015年7月1日 · We evaluated the mean respiratory impedance (Zm) as well as values for the inspiration (Zi) and expiration cycles (Ze) at the beginning of inspiration (Zbi) and expiration (Zbe), respectively. The peak-to-peak impedance (Zpp=Zbe-Zbi) and the respiratory cycle dependence (ΔZrs=Ze-Zi) were also analyzed.

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2018年5月6日 · The aging mechanism of zirconium potassium perchlorate (ZPP), which is one of the primary charges in pyrotechnic mechanical devices, was investigated in terms of spontaneous aging and aging under high-humidity conditions. Differential scanning calorimetry experiments revealed an exothermic oxidation reaction related to explosion.