| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a carbon fiber-reinforced carbon composite material for a single crystal drawing-up unit by CZ method (Czochralski method) which is high in thermal efficiency. <P>SOLUTION: This manufacturing method is a manufacturing method of a carbon fiber-reinforced carbon composite material of a crucible etc. of which the base material surfaces are coated with a thermally cracked carbon, and used for a single crystal drawing-up unit, and the base material is first impregnated with a thermally cracked carbon of RC structure (Rough Columnar structure) or SC structure (Smooth Columnar structure), then the coating of a thermally cracked carbon of ISO structure (Isotropic structure) is formed on the base material. <P>COPYRIGHT: (C)2009,JPO&INPIT |
