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Thermal Transient Characteristics of Initiator with STS 304 Bridgewire  

Yoon, Ki-Eun (국방과학연구소)
Ryu, Byung-Tae (국방과학연구소)
Choi, Chang-Sun (국방과학연구소)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.10, no.4, 2006 , pp. 19-25 More about this Journal
Abstract
Thermal transient tests were performed on the electric initiator with STS 304 bridgewire(diameter 2.3 mil) and $Zr-KCIO_4$ primary charge. Analysing the test data using fitted Wire Model shows that the thermal characteristic parameter related to primary charge is changed sharply around $300^{\circ}C$. It is determined that this phenomenon is due to endothermic reaction from phase transition of $KCIO_4$, which is a component of the primary charge.
Keywords
Electric Initiator; Bridgewire; primary Charge; Thermal Transient Test; No-Fire Test;
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