Simple deceleration mechanism confirmed in the terminal hypervelocity impacted tracks in SiO2 aerogel

doi:10.1016/j.icarus.2018.08.017

NSSC OpenIR > 空间环境部

	Simple deceleration mechanism confirmed in the terminal hypervelocity impacted tracks in SiO2 aerogel
	Liu, Mingfang; Du, Ai; Li, Tiemin; Zhang, Ting; Zhang, Zhihua; Cao, Guangwei; Li, Hongwei; Shen, Jun; Zhou, Bin
作者部门	空间环境部
发表期刊	ICARUS
	2019
卷号	317 页码:365-372
DOI	10.1016/j.icarus.2018.08.017
ISSN	0019-1035
语种	英语
关键词	Hypervelocity impact Thermal effects Tracks classification SiO2 aerogel
摘要	As an attractive collector medium for hypervelocity particles, SiO2 aerogel has been deployed on outer space missions. Aiming at quantifying the complicated relationship between the penetration track and the residual grains, many attempts have been made on hypervelocity experiments and models. However, models were difficult to accord strictly well with experimental data attributed to many uncertainties including thermal effects, aerogel accretions and projectile ablation during the penetration. In this paper, impact experiments were conducted at various density silica aerogels (50 similar to 120 kgm(-3)) with regular soda-lime glass beads as projectiles. Varying degrees of thermal effects happened around and along track was observed by scanning electron microscopy. That energy distribution in the track released by hypervelocity projectile has a decreasing change. The regular data of the terminal A-beta type track (the track with combined features) was found according to A-type tracks classification based on the conditions of vapor model (Dominguez, 2009). Just considering for projectile overcoming the crushing strength with uniform deceleration, the simple mechanism was confirmed by the data fitted well with the snowplow model (Dominguez et al., 2004). The result after tracks classification is due to the terminal track with few thermal effects and aerogel accretions. In addition, other two types of tracks formation processes were discussed.
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.nssc.ac.cn/handle/122/6679
专题	空间环境部
推荐引用方式 GB/T 7714	Liu, Mingfang,Du, Ai,Li, Tiemin,et al. Simple deceleration mechanism confirmed in the terminal hypervelocity impacted tracks in SiO2 aerogel[J]. ICARUS,2019,317:365-372.
APA	Liu, Mingfang.,Du, Ai.,Li, Tiemin.,Zhang, Ting.,Zhang, Zhihua.,...&Zhou, Bin.(2019).Simple deceleration mechanism confirmed in the terminal hypervelocity impacted tracks in SiO2 aerogel.ICARUS,317,365-372.
MLA	Liu, Mingfang,et al."Simple deceleration mechanism confirmed in the terminal hypervelocity impacted tracks in SiO2 aerogel".ICARUS 317(2019):365-372.

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