强冲击下金属铜界面辐射特性测量研究

强冲击条件下金属温度是其重要的状态参量,由于冲击加载过程时间短以及辐射温度高等特点,导致常规静态测温方法不适用.本文利用二级轻气炮发射高速弹丸,与金属碰撞后形成冲击波对样品进行压缩,再利用多通道辐射高温计测试系统获取强冲击下金属铜的辐射信号.通过改进样品加工和靶体装配技术,成功获得了金属铜界面稳定的发光辐射历史.通过普朗克灰体模型拟合得到金属在冲击压缩下接近理想模型的辐射温度值.

Research on radiation from copper interface under strong impact

Temperature is an important parameter under strong impact conditions to study the state of metal. It is very difficult to measure under high pressure because the short impact loading process and the high radiation temperature. In this work, the radiation pyrometer is used to study the radiation characteristics from metal interface. By improving the processing technology to the metal sample and assembly technology to the target, the stable history of radiation from the metal interface has been successfully obtained. It was confirmed that the temperature values is consistent with ideal model.