Spectroscopic study of process of carbon ablation from a graphite surface under shock wave influence

The spectral characteristics of the products of graphite surface ablation behind a reflected shock wave in air were studied in the wavelength range from 400 to 1100 nm. The experiments were carried out on a single-diaphragm shock tube. It has been shown that the emission spectrum of ablation products is close to the emission spectrum of an absolutely black body. Additional experiments on the reflection of a shock wave from a quartz surface allow us to conclude that the detected electromagnetic flux is associated with the emission of solid carbon microparticles formed in the air near the graphite surface as a result of the impact of a shock wave on it.