| 摘要 |
PURPOSE:To easily obtain a superior highly oriented block-shaped graphite by carrying out firing under specified varied temp. conditions when polymer films are laminated and heated under pressure. CONSTITUTION:Plural polymer films or carbonaceous films obtd. from the polymer films are laminated and graphitized by firing in which heating to >=2,600 deg.C, cooling to a temp. range of <=1,600 deg.C and reheating to a temp. range of <=2,600 deg.C are carried out once or more. Since the films undergo temp. changes of >=1,000 deg.C when fired, carbon atoms are regularly arranged in each graphitized layer and the grains are accurately oriented to obtain a highly oriented state. |
