The oxidation weight loss rate of binderless C/C composite prepared by in situ carbonization of pre oxidized fibres(PAN) was tested in the air,at 0.1 MPa,from 673 K to 973 K using thermo weight analysis method.

• 采用恒温热重法测定了在空气中 ；0 .；1 MPa、673 K到 973 K下预氧丝 (即预氧化聚丙烯腈纤维 )原位炭化无粘结剂 C/ C复合材料的氧化失重率 ;