Continuous SiC Fibre-reinforced SiC Matrix Composites: an Analysis Based on Patents

摘要

Over 1800 SiC_f/SiC patents have been searched and identified in this work. SiC_f/SiC technologies are emerging rapidly from 2005 in China. However, the extremely low proportion of patents owned by companies indicates that more effort and focus on SiC_f/SiC are extremely needed to enable industrial application. Statistical results of worldwide patents reveal that the modification of the mechanical properties is the most urgent demand in industry; meanwhile, the analysis results show that the CVI/CVD (chemical vapor infiltration/chemical vapor deposition) method appears promising to enhance the mechanical properties, as well as to improve the thermal conductivity and stability, to lower the costs and to enhance the controllability of the product.