C/C composites were prepared by needled felt with fibre volume fraction of 40%, 30% and 25% densifying through chemical vapour infiltration for three times.

• 摘要以40%25，30%25和25%253种不同纤维体积分数的针刺整体毡为坯体，经3次化学气相浸渗后制备C/C复合材料；