一、引言虽早在本世纪初,已有人注意到采用将碳质纤维加热到2300℃以上高温处理的方法来获得石墨纤维,但对于具有比较高的机械性能的石墨纤维材料的研制,还是六十年代初的事。石墨纤维具有比碳纤维更高的弹性模量,因此它作为一种优越的补强材料,与碳纤维差不多是同时在迅速发展,并于七十年代初实现了工业化。 I. INTRODUCTION Although as early as the beginning of this century, it has been noticed that graphite fibers have been obtained by heating carbonaceous fibers to over 2300 ℃. However, for the development of graphite fiber materials with relatively high mechanical properties, Things of the early decade. Graphite fiber has a higher modulus of elasticity than carbon fiber, so it is a superior reinforcing material that is rapidly developing at about the same time as carbon fiber and industrialized in the early 1970s.