| 纳米金刚石复合镀层的高温结构稳定性 |
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| 引用本文： | 李成明,池成忠,纪殿友,孙宗华,吕反修.纳米金刚石复合镀层的高温结构稳定性[J].纳米科技,2008,5(3):8-11. |
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| 作者姓名： | 李成明 池成忠 纪殿友 孙宗华 吕反修 |
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| 作者单位： | [1]北京科技大学材料学院,北京100083 [2]廊坊恒宇工具制造有限公司,河北廊坊065000 [3]太原理工大学材料学院,山西太原030024 |
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| 摘 要： | 研究了电沉积法制备的纳米金刚石复合镀层结构的高温稳定性。用氮气保护的管式炉进行纳米金刚石镍钴复合镀层的高温处理。差热法（DSC）分析镀层高温时的物理变化，利用扫描电镜（SEM）观察镀层处理前后的组织形貌，高分辨电镜（HRTEM）观察镀液中纳米金刚石粉的分散性和镀层的结构特征，维氏硬度计测量镀层的显微硬度。结果显示显微硬度在300℃处理后有一个最高值，之后更高的处理温度下基本保持在HV800以上。
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| 关 键 词： | 纳米金刚石 复合镀层 稳定性 |
Stability of High Structure of Nano-diamond Composite Coatings |
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| Affiliation: | LI Cheng-ming, CHI Cheng-zhong, JI Dian-you, SUN Zong-hua, LU Fan-xiu (1.School of Material Science and Engineering, Beijing University of Science and Technology, Beijing 100083, China;2.Langfang Hengyu Tools Make Limited Co., Langfang 065000, China;3.Taiyuan University of Technology, Taiyuan 030024, China) |
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| Abstract: | High temperature stability of Ni-Co- nano-diamond composite coatings, which was heated in high temperature pipe furnace, was investigated. The surface morphology of coatings and physic transformation were observed by SEM and DSC. The dispersion of nano-diamond and structure of coatings were examined hy high resolution electron microscopy （HRTEM）. The maximum microhardness of coatings occurred after annealed at 300℃ and kept in HV800 or more at a higher disposal temperature. |
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| Keywords: | nano-dialnond composite coatings stability |
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