| 摘要 |
<p>A laminate of layers (L1 to L29) of carbon fibre precursor material is clamped in a CVI deposition apparatus, each except the top layer carrying a layer of silicon powder granules (1) in a central zone (Z) thereof. The CVI process deposits carbon (from methane gas) on the silicon particles, which reacts in the solid state to form silicon carbide and encapsulates the resulting SiC particles and enabling a central wear resistant region to be formed within a peripheral machinable region.</p> |
