冲击波作用下碳水混合物发射光谱研究

Emission Spectra of Shock-Compressed Carbon-Water Mixtures

1.
Institute of Atomic and Molecular Science at High Temperature and High Pressure, Sichuan University, Chengdu 610065, China;
2.
Laboratory for Shock Wave Physics and Detonation Physics Research, Institute of Fluid Physics, CAEP, Chengdu 610003, China

摘要: 利用二级轻气炮和OMA-Ⅲ光多通道系统，分别研究金刚石与水、石墨与水两种碳水混合物在冲击波作用下的发射光谱。冲击压力高于16.41 GPa时，观测到350～750 nm波段内叠加在连续辐射背景上的发射谱；当冲击压力高于33.95 GPa时，C2、CO、CO2的谱线辐射明显，表明碳和水发生了化学反应。
- 发射光谱 /
- 反应机理 /
- 碳水混合物
Abstract: Emission spectra of shock-compressed graphite-water mixtures and diamond-water mixtures have been recorded by using the optical multichannel system(OMA-Ⅲ) at a two stage gas gun. Emission has been observed under a broad but strong background in a spectral range between 350 nm and 750 nm from the shocked examples above 16.41 GPa. The shock products C2, CO, CO2 appear at pressure above 33 95 GPa, it shows that carbon has reacted with water.
- emission spectra /
- reaction mechanism /
- carbon water mixtures