摘要
制备了纳米碳管增强铜基复合材料，研究了材料的一些重要力学和物理性能结果表明：复合材料中纳米碳管的分布较均匀，其最佳体积分数为１２％～１５％．材料的断裂以纳米碳管的拔出和桥接为主，磨损主要是氧化磨损热膨胀系数αｃ约为 ９．３６×１０－６ ／℃，存在加热一冷却膨胀曲线滞后现象材料的电阻率约为 ２．７×１０－６ ｃｍ。
Some important mechanical properties and physical properties of the nanotubereinforced Cu-based composite, including the density. fracture action, sliding wear property, thermal expansion behavior and conductivity. were investigated. Nanotube inside the composite was uniformly distributed. The experiment results showed that the fracture action was related to the nanotubes pullout and bridge mode and the optimum content was 12%. Mainly oxidation wear, accompanied some abrasive wear was involved during the stable wearing stage. The resulted thermal expansion ore was 9.36×10-6/ and a significant thermal hysteresis loop was determined. The measured value of the resistance coefficient was about 2.7×10-6-cm, mainly affected by the hole rate, but with little relation to the nanotube content.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2000年第B01期132-136,共5页
Chinese Journal of Materials Research
基金
国家自然科学基金!59872030
浙江省自然科学基金
