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一种Ni-Cr@Al/CuO钝感含能元件的制备及性能

Teng-long YANG,Yun SHEN,Ji DAI,Guo-qiang ZHENG,Cheng-ai WANG,Ying-hua YE,Rui-qi SHEN

Chinese Journal of Energetic Materials（2019）

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Abstract
为了提高Ni-Cr薄膜发火件的安全性和点火能力,使用磁控溅射技术将Al/CuO含能薄膜与Ni-Cr薄膜发火件复合,制备了一种新型的Ni-Cr@Al/CuO钝感含能元件.该Ni-Cr@Al/CuO钝感含能元件既可以用作换能元,又可以作为最简单的电点火元件,从而简化点传火序列,适应弹药微型化的发展需求.测试其1A1W5min安全性、电发火感度和点火能力.结果表明,Ni-Cr@Al/CuO钝感含能元件满足1A1W5min安全性要求;50 ms临界发火电流为3.08 A,最小全发火电流为3.18 A,最大不发火电流为2.98 A,安全裕度较高;在相同条件下,Ni-Cr@Al/CuO钝感含能元件可以点燃硼/硝酸钾,并且可实现1 mm的间隙点火,而Ni-Cr薄膜发火件不能成功点燃硼/硝酸钾.
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