火焰法高钴YG系硬质合金表面沉积复合碳材料

材料研究学报, 2008, 22(6): 664-672.

火焰法高钴YG系硬质合金表面沉积复合碳材料

唐德文成晓玲匡同春王成勇

1.1.广东工业大学机电学院广州 5104102.华南理工大学实验中心广州 510080>

1.1.School of Electrical and Mechanical Engineering

Guang Dong University of Technology

GuangZhou 5100902.Experiment Center

South China University of Technology

Guangzhou 510641>

基金项目: 广东省自然科学基金(2004B10301032)

关键词：功能材料 , diamond , carbon nanotubes , flame , Yg8cemented carbide , Yg16cemented carbide

Deposit carbon coatings on high Co YG cemented carbide with combustion flame

TANG Dewen

Keywords： functional materials , 金刚石 , 碳纳米管 , 火焰法 , YG8硬质合金 , YG16硬质合金

用C₂H₂与O₂火焰在高钴YG系硬质合金基体上沉积复合的碳材料,并分别对酸蚀脱钴预处理的 YG8、YG16硬质合金基体表面进行火焰法沉积研究;用扫描电镜SEM、XRD射线衍射谱、 Raman光谱、原子力显微镜等手段分析了复合碳涂层的组织结构、涂层的质量以及涂层横截面. 结果表明: 不同时间脱钴处理后的YG8硬质合金表面经火焰沉积后,在表面分别形成了典型的“菜花状”球形金刚石、碳纳米管以及金刚石、石墨和非晶碳复合而成的碳涂层; 经20 min 脱钴处理的YG16硬质合金表面沉积的碳涂层则以碳纳米管为主.

C₂H₂ and O₂ of flame was used to deposit carbon coatings on high Co YG series cemented carbide surface. the influence of acid corroded Co YG8, YG16 and deposition time have been investigated With the method of XRD, SEM, Raman and atomic microscope, carbon coatings structure, quality and Cross sectional microstructures of carbon coating was analyzed. The experimental result show that after different acid corroded Co time, the typical diamond/nanometer carbon tube and diamond-graphite-no crystal carbon coatings have been formed on the cemented carbide YG8 surface; after acid corroded Co 20 time, nanometer carbon tube has been mainly formed on the cemented carbide YG16 surface

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