To improve the chemical stability and oxidation resistance of a carbon material, silicon carbide (SiC) was coated on porous carbon by impregnation. The porous carbon was impregnated with a silicone oil/n-hexane solution as a precursor for the SiC coating layer. The impregnated porous carbon was heat-treated at 1520 °C in an atmosphere of Argon (Ar). X-ray diffraction (XRD) analysis demonstrated an amorphous porous carbon with a coated layer of β-SiC in crystalline phase. Scanning electron microscope (SEM) observations revealed a thin layer of SiC coated on the surface of the carbon spheres although the SiC layer was not sufficiently dense. The oxidation of the SiC-coated porous carbon was remarkably retarded because of its coating with SiC. In addition, the compressive strength of the SiC-coated porous carbon was almost two times higher than that of the pristine porous carbon.

为了提高碳材料的化学稳定性和抗氧化性，碳化硅（SiC）通过浸渍涂覆在多孔碳上。用硅油/正己烷溶液作为SiC涂层的前体浸渍多孔碳。浸渍的多孔碳在氩气 (Ar) 气氛中在 1520°C 下进行热处理。X 射线衍射 (XRD) 分析表明无定形多孔碳在晶相中具有 β-SiC 涂层。扫描电子显微镜 (SEM) 观察显示，尽管 SiC 层不够致密，但在碳球表面涂覆了一层薄薄的 SiC。由于碳化硅涂层，碳化硅涂层多孔碳的氧化显着延缓。此外，