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Near-infrared Quantum Cutting in Pr3+-Yb3+ Co-doped Oxyfluoride Glass Ceramics Containing CaF2 Nanocrystals章丽丽,XU Jie,胡一晨,CHEN Guorong,WANG ZhongjianSchool of Materials Scence and Engineering, East... diffraction (XRD) have proved the incorporation of Pr3+ and Yb3+ into CaF2 nanocrystal lattice. Near-infrared quantum cutting involving Yb3+ 980 nm and 1 015 nm ( 2F5/2 → 2F7/2 ) emission has been achieved......
Wear Mechanism of WC-Co Cemented Carbide Tool in Cutting Ti-6Al-4V Based on Thermodynamics胡小龙1,2,邵芳1,WANG Renwei31. Guizhou Institute of Technology2. School of Mechanical Engineering, Guizhou... accuracy of both diffusion wear and oxidation wear can be achieved by the method of thermodynamic theory analysis method.The conclusion will provide useful references for the optimization of cutting......
Efficient near-infrared quantum cutting by Ce3+-Yb3+ couple in GdBO3 phosphors张浩,陈金灯,郭海Department of Physics, Zhejiang Normal University摘 要:Ce3+ and Yb3... and luminescent properties. An efficient near-infrared (NIR) quantum cutting (QC) from the phosphors was observed, which involved the emission of two low-energy NIR photons (around 971 nm) from......
J. Cent. South Univ. (2016) 23: 1123-1131 DOI: 10.1007/s11771-016-0362-y Detection of surface cutting defect on magnet using Fourier image reconstruction WANG Fu-liang(王福亮)1, 2, ZUO Bo(左博)1, 2 1..., and it is commonly used in mobile information terminals. Defects may appear on the surface of the magnet while cutting it into smaller slices, and hence, automatic detection of surface cutting defect detection......
ARTICLE J. Cent. South Univ. (2019) 26: 1050-1064 DOI: https://doi.org/10.1007/s11771-019-4070-2 Effects of reinforced nanofluid with nanoparticles on cutting tool wear morphology Seyed Hasan... active agent (surfactant) was added to the base cutting fluid as a reinforcing element. The effects of new lubricant on the tool wear morphology of A286 works parts were assessed. Key words: nanofluid......
,AlTiN-Cu 涂层刀具的切削寿命比AlTiN 涂层刀具的低,这是由于在湿式切削不锈钢时金属铜的润滑效果不明显,同时,Cu 的加入降低了涂层的硬度,致使涂层切削寿命下降. 图6 干式切削后刀面平均磨损量随时间的变化曲线 Fig. 6 Changing curves of average flank wear with time during dry cutting 图7 涂层刀具在干式切削7 min后刀面的磨损形貌 Fig. 7 Micrographs of flank wear region of coating tool after dry cutting for 7 min 图8 湿式切削后刀面最大磨损量随时间的变化曲线 Fig. 8 Changing curves of maximum flank......
Electron-beam Treatment of Tungsten-free TiC/NiCr Cermet Ⅰ:Influence of Subsurface Layer Microstructure on Resistance to Wear during Cutting of MetalsV.E.Ovcharenko,S.G.Psakhie摘 要:cutting tool for sintered TiC/NiCr cermet. The results showed that the surface electron-beam treatment of the TiC/NiCr cermet is an efficient method for investigating the mi-crostructure and phase......
Carbide Cutting Tools Co., Ltd, Zhuzhou 412007, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: Ti-X-N (X=Al, Si or Al+Si) coatings were grown onto.... Furthermore, the nc-TiAlN/a-Si3N4 coating shows the best machining performance. Key words: TiN coating; alloying element; hardness; cutting test 1 Introduction TiN coatings, which have served......
Efficient near-infrared quantum cutting in Tb3+,Yb3+ codoped LuPO4 phosphors潘雨,李丽,常文轩,陈武阳,李陈,陈鹏,曾梓玉College of Sciences,Chongqing University of Posts and Telecommunications摘 要:cutting(QC) phenomena.The XRD results showed that all the phosphors exhibited good crystallinity and had......
Efficient near-infrared quantum cutting in Tb3+,Yb3+ codoped LuPO4 phosphors潘雨,李丽,常文轩,陈武阳,李陈,陈鹏,曾梓玉College of Sciences,Chongqing University of Posts and Telecommunications摘 要:cutting(QC) phenomena.The XRD results showed that all the phosphors exhibited good crystallinity and had......