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DEVELOPMENT OF CFRP-CERAMIC HYBRID MATERILALS APPLIED BY ION BEAM AND EVALUATION OF MECHANICAL PROPERTIES OF DEVELOPED MATERIALS

离子束CFRP-陶瓷杂化材料的研制及所研制材料的力学性能评价

基本信息

批准号：
04650069
负责人：
MURAKAMI Ri-ichi
金额：
$ 0.45万
依托单位：
THE UNIVERSITY OF TOKUSHIMA
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

项目摘要

The base plastic of CFRP is polyetherimide with talc. The Cu film was galvanized onto the CFRP and then the Cr film was plated on the Cu film. The nitrogen ion was implated in Cr-Cu film on CFRP by using dynamic mixing method under an accelerated voltage of 1kV.After implantation, the samples were annealed at 333, 363, 393 and 423K for 30min. The microhardness of Cr-Cu film was 4000 at the top surface, regardless of ion implantaion, and decreased with increasing the depth. For 0.5mm of depth, the microhardness was greater for metal film than for CFRP.The adhesive strength of metal film increased with increasing annealing temperature to 363K.When the annealing temperature was over 363K, it decreased. The residual stress was tension on the top surface of metal film. The maximum residual tensile stress was obtained at the annealing temperature of 393K.For ion implanted metal film, there was high residual tensile stress at room temperature. The adhesive strength of film was affected by the residual stress.The tensile strength and bending strength were improved by metal plating up to 7-11%. But the ion implantation scarecely affected the improvement of tensile strength and bending strength. The friction coefficient was 0.1 for CFRP, 0.9 for Cr-Cu film and 0.8 for implanted film. The wear volume of ball increased 100 times greater for metal films than for CFRP.

CFRP的基础塑料是含有滑石粉的聚醚酰亚胺。在CFRP上电镀Cu膜，然后在Cu膜上镀Cr膜。采用动态混合法，在1 kV加速电压下对碳纤维增强塑料（CFRP）表面Cr-Cu薄膜进行氮离子注入，注入后的样品分别在333、363、393和423 K下退火30 min。Cr-Cu膜的显微硬度在上表面为4000，且随深度的增加而降低。在0.5mm深度范围内，金属膜的显微硬度高于碳纤维复合材料;金属膜的结合强度随退火温度的升高而增加，当退火温度超过363 K时，结合强度下降。残余应力主要分布在金属膜的上表面，为拉应力.在393 K退火温度下，薄膜的残余拉应力最大，室温下离子注入金属薄膜的残余拉应力较大。残余应力影响膜层的结合强度，镀金属后膜层的抗拉强度和抗弯强度提高7- 11%。但离子注入对拉伸强度和弯曲强度的提高影响不大。CFRP的摩擦系数为0.1，Cr-Cu膜的摩擦系数为0.9，注入膜的摩擦系数为0.8。金属薄膜的钢球磨损体积比碳纤维复合材料的钢球磨损体积大100倍。