科学网基金客服电话
010-62580792
联系我们

国家自然科学基金项目查询

基于亲和作用机理的金刚石低温摩擦磨损研究

批准号51605453 学科分类机械摩擦、磨损与控制 ( E050501 )
项目负责人杨宁 负责人职称工程师 依托单位中国工程物理研究院机械制造工艺研究所
资助金额19.00
万元
项目类别青年科学基金项目 研究期限2017 年 01 月 01 日 至
2019 年 12 月 31 日
中文主题词金刚石;低温;摩擦磨损;表面质量;磨损率
英文主题词diamond;cryogenic;friction and wear;surface integrity;wear rate

摘要

中文摘要 低温可抑制金刚石与铁、钛等金属间由摩擦引起的亲和作用,使金刚石损耗极小。利用该现象可满足纯铁(可用于材料辐射烧蚀和极端条件精密物理实验)和纯钛(可用于微电子制造和医用金属材料)对超精密金刚石切削加工的需求以及开发超光滑低损伤金刚石表面(可用于量子信息等技术需求的高质量化学气相沉积金刚石制备)研磨新工艺,然而,长久以来并未引起重视。认识基于亲和作用机理的金刚石低温摩擦磨损规律,对其应用开发尤为关键。项目组在金刚石及其工具研磨的理论技术积累上,借助原子力显微镜、透射电子显微镜等观测手段和分子动力学等理论分析方法,对金刚石在低温条件下基于亲和作用机理的光滑表面的创成、表面损伤层和磨损行为展开研究,揭示内在材料迁移行为,掌握摩擦因素的影响规律。本研究对于实现纯铁纯钛的超精密金刚石切削和接近理想金刚石表面的研磨新工艺提供基础理论和技术支撑。
英文摘要 Friction-induced affinity effect between the diamond and the metals, such as iron and titanium, can be inhibited by cryogenic temperature, which makes a tiny material loss of diamond. Taken advantage of this, the demand of ultra-precision diamond cutting of pure iron (used for material radiative ablation and precision physical experiments under extreme conditions) and pure titanium (used for micro-electromechanical systems manufacture and biomedical metallic materials) will be satisfied, and a new lapping technique of ultra-smooth and low damage diamond surface (used for fabricating high quality chemical vapor deposition diamond for the quantum information and other technologies) can be developed. However, it hasn’t yet been paid enough attention to. The key of its application and development is to understand the law of diamond cryogenic friction and wear caused by affinity effect. With our accumulation of theory and technology of diamond and its tool lapping, the research group will study the smooth surface generation, surface damage layer and wear behavior of diamond under cryogenic condition based on the affinity effect, by means of observation approaches , such as AFM (atomic force microscope) and STM (transmission electron microscope), and theory analysis methods, such as MD (molecular dynamics) simulation. Our research gives the basic theory and technology support for the realization of ultra-precision diamond cutting of pure iron and titanium and the new lapping technique of near ideal diamond surface.
结题摘要

成果

序号 标题 类型 作者

  • Copyright @ 2007-
  • 中国科学报社
  • All Rights Reserved
  • 地址:北京市海淀区中关村南一条乙三号 电话:010-62580783