铝-铝超高速碰撞闪光现象的初步实验测量

 为了研究不同碰撞参数条件下超高速碰撞闪光的特点及闪光温度的变化规律,构建了高温计及附属实验测量系统平台，利用该平台进行了超高速碰撞闪光的初步测量。根据Planck辐射的基本理论，对每次实验的碰撞闪光强度进行了4种波长的采集并对温度进行了拟合计算，得到了碰撞闪光温度历史。实验结果表明：对于弹丸、靶板材料均为LY12铝而言，碰撞角度（与靶板平面夹角）相同、碰撞速度在5.35~5.97 km/s范围内时，碰撞速度对碰撞闪光温度影响不明显；然而，碰撞速度相近，碰撞角度越大，碰撞闪光温度越高。

Preliminary Experimental Measurement of Light Flash Phenomena Produced in Al-Al Hypervelocity Impacts

To investigate the hypervelocity impact-flash characteristics and rules of light flash temperature variation in different impact parameter conditions, an experimental measurement system platform composed of a pyrometer and subsidiary experimental measurement system is established, and preliminary experimental measurements of hypervelocity impact flash are carried out using the platform. According to the basic theory of Planck distribution, flash intensity data of four wavelengths are collected and their fitting temperatures from every experiment are calculated. Thus the history of flash temperatures is obtained. Experimental results show that for aluminum projectile LY12 impacting aluminum target LY12, when the impact angle (the angle between the projectile and the target plane) remains the same and the impact velocity is between 5.35 km/s and 5.97 km/s, impact velocity has no obvious influence on light flash temperature, while with similar impact velocities, the larger the impact angle is, the higher the impact light flash temperature will be.