The dwell/penetration transition velocity and penetration velocities were determined for a commercially-available hot-pressed silicon carbide (SiC) in a baseline target configuration. The targets consisted of SiC cylinders slip-fitted into Ti6AI4V cups and thin Ti6A14V cover plates welded to the cups. The lateral and back surfaces of the SiC cylinders were well confined in this target configuration, but not pre-stressed. The diameter of the ceramic cylinders was 38.1 mm. Three ceramic thicknesses were evaluated (12.7, 25.4. and 38.1 mm) in this study. Laboratory-scale tungsten-based (W-based) long-rod penelrators (L/D 20, D = 3.175 mm) were fired into the targets at various velocities ranging between 1000 - 1700 m/s. The ballistic interaction between the penetrators and ceramic targets were captured in time using multiple 1 MeV flash X-rays. The resulting X-ray radiographs were used to determine the dwell/penetration transition velocity and penetration velocities. The results show no apparent effect of thickness on the dwell/penetration transition velocity; however, an effect on penetration velocity was noted for the 12.7 mm thick cylinders. Data for this SiC which includes the effect of lateral pre-stress on the dwell/penetration transition velocity and penetration velocity has recently been published [1]. Comparison of the two data sets indicates that there is a large effect of lateral pre-stress on the dwell/penetration transition velocity, but not on penetration velocity. The experimental set-up and results are discussed.
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机译：在基线靶构造中测定用于市售热压碳化硅（SiC）的停留/穿透过渡速度和穿透速度。该目标由SiC气瓶组成，SiC气缸安装成Ti6ai4V杯和焊接到杯子的薄Ti6a14V盖板。 SiC圆柱体的横向和后表面在该靶构造中很好地限制，但不受预应力。陶瓷缸的直径为38.1mm。在本研究中评估了三种陶瓷厚度（12.7,25.4。和38.1mm）。实验室规模的基于钨（基于W型）的长杆佩内尔（L / D 20，D = 3.175mm）在1000-1700m / s之间的各种速度下射入目标。使用多个1MeV闪光X射线及时捕获穿透器和陶瓷靶之间的弹道相互作用。得到的X射线射线照片用于确定停留/穿透过渡速度和渗透速度。结果表明，厚度对停留/穿透过渡速度没有明显影响;然而，对于12.7mm厚的汽缸，注意到对渗透速度的影响。该SiC的数据最近公布了该SiC的数据，其包括横向预应力对停留/穿透过渡速度和渗透速度的影响[1]。两个数据集的比较表明横向预应力对停留/穿透过渡速度的大效果，但不具有渗透速度。讨论了实验组和结果。
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