采用工业用直流脉冲等离子体增强化学气相沉积PCVD技术在硅烷、氢气和氮气的混合气氛下成功制备了Ti Si N涂层,重点讨论了混合气体比例对薄膜性能的影响。结果表明:当混合气体中H2∶N2为4∶1、硅烷流量为2sccm时,Ti N/Ti Si N涂层中硅...采用工业用直流脉冲等离子体增强化学气相沉积PCVD技术在硅烷、氢气和氮气的混合气氛下成功制备了Ti Si N涂层,重点讨论了混合气体比例对薄膜性能的影响。结果表明:当混合气体中H2∶N2为4∶1、硅烷流量为2sccm时,Ti N/Ti Si N涂层中硅含量为8.01at%,此时,获得此工艺薄膜的最高硬度为28GPa。展开更多
TiN single coatings and TiN/Ti(C,N) multilayer coatings deposited on Cr12MoV substrate have been completed by pulsed DC plasma enhanced chemical vapor deposition(PCVD) process. The SEM, XRD and microvicker’s hardness...TiN single coatings and TiN/Ti(C,N) multilayer coatings deposited on Cr12MoV substrate have been completed by pulsed DC plasma enhanced chemical vapor deposition(PCVD) process. The SEM, XRD and microvicker’s hardness as well as the indentation test were used to study the microstructure and mechanical properties of TiN/Ti(C,N) multilayer coatings. The results show that TiN/Ti(C,N) coatings are fine and have free column structure, and carbon atoms take the place of some nitrogen atoms in Ti(C,N) coatings when lower flow ratio of CH 4 is used. The microvicker’s hardness and interfacial adhesion between TiN/Ti(C,N) coatings and Cr12MoV substrate increases more obviously than that of TiN single hard coatings due to the more dense and free column structure when process is optimized.展开更多
文摘采用工业用直流脉冲等离子体增强化学气相沉积PCVD技术在硅烷、氢气和氮气的混合气氛下成功制备了Ti Si N涂层,重点讨论了混合气体比例对薄膜性能的影响。结果表明:当混合气体中H2∶N2为4∶1、硅烷流量为2sccm时,Ti N/Ti Si N涂层中硅含量为8.01at%,此时,获得此工艺薄膜的最高硬度为28GPa。
文摘TiN single coatings and TiN/Ti(C,N) multilayer coatings deposited on Cr12MoV substrate have been completed by pulsed DC plasma enhanced chemical vapor deposition(PCVD) process. The SEM, XRD and microvicker’s hardness as well as the indentation test were used to study the microstructure and mechanical properties of TiN/Ti(C,N) multilayer coatings. The results show that TiN/Ti(C,N) coatings are fine and have free column structure, and carbon atoms take the place of some nitrogen atoms in Ti(C,N) coatings when lower flow ratio of CH 4 is used. The microvicker’s hardness and interfacial adhesion between TiN/Ti(C,N) coatings and Cr12MoV substrate increases more obviously than that of TiN single hard coatings due to the more dense and free column structure when process is optimized.