There is a protective coating of silicon dioxide on the silicon carbide. 在棒的表面有一層二氧化硅保護涂層。
Silicon, naturally occurring in the form of silica and silicates, is the most important semiconductor for the electronics industry. 在自然界從硅酸鹽和二氧化硅形式存在的硅是電子工業(yè)中最重要的半導體原材料。