| 摘要 |
<p>The invention relates to a nanocomposite carbon material, permeable to electromagnetic waves, with an attenuation factor comprising from 0.3 and 9 dB, resulting from thermal treating at a temperature of 440A ... 900A C of a carbon matrix based on coal oil tar pitch, wherein 0.05 ... 1.5% nanocarbon is included.</p> |
