抄録
Experimental measurements on ablation properties of fine ceramics SiC and Si3N4 are performed in an atmospheric high-temperature argon plasma free jet The heat of ablation is measured for the heat flux of 1.2∼2.6×104 kW/m2. It is about 2×104 kJ/kg for Si3N4 and 5-8×104 kJ/kg for SiC. In addition, features of the ablated surface of the materials are observed with the aid of an electron microscope, and the mechanism of the ablation is discussed on the basis of it.
