TiB_2-W-Cu复合材料的导电/抗烧蚀性能研究  

Conductivity and anti-erosion property of TiB_2-W-Cu composites

作　　者：刘正伟[1] 李明利[1,2,3] 周宇松[1] 吴敏[1] 王耀军[1] 郭红燕[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]硅材料国家重点实验室浙江大学材料科学与工程系,浙江杭州310027 [3]宁波表面工程研究中心,浙江宁波315103

出　　处：《兵器材料科学与工程》2010年第3期34-36,共3页Ordnance Material Science and Engineering

摘　　要：通过"冷等静压成型-还原气氛烧结-形变强化"工艺制备得到TiB2-W-Cu复合材料致密样品,通过多次形变强化的方法提高铜基复合材料的硬度,并采用硬度计、电烧蚀装置等设备测试所制备的铜基纳米复合材料样品的硬度、软化温度、导电性以及电弧烧蚀等性能指标。样品的平均电导率4.76×103 S/m、硬度HV=142、软化温度≥950℃、电弧烧蚀≤40μg/C。The TiB2-W-Cu dense composites were prepared through the＂cold isostatic pressing—reductive atmosphere sintering—strain hardening＂ process.The hardness of copper-based composites was enhanced by strain hardening.The hardness,softening temperature,conductivity and anti-erosion performance were examined by using hardness tester,electric arc erosion devices and other equipments.The properties of the prepared copper-based nano-composites are,average conductivity of 4.76×103 S/m,hardness HV=142,softening temperature ≥950 ℃,and electric arc ablation ≤40 μg/C.

关 键 词：铜基纳米复合材料 正交试验 形变强化 抗烧蚀性能 

分 类 号：TG146[一般工业技术—材料科学与工程]