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9篇 您的检索式:作者名="DAI Nengli"
    题名 作者 年代 出处 被引量
1Corrosion and Fatigue Testing of Microsized 304 Stainless Steel Beams Fabricated by Femtosecond Laser显示文摘The 304 stainless steel (SS) microcantilever specimens with dimensions of 30 μm×30 μm×50 μm (thickness× width×length) were fabricated by femtosecond (fs) laser. The microsized cantilevers of good quality with struc- ture and dimensions according commendably with that of the designed cantilever were obtained. The result shows that fs laser micromachining is a promising method for directly fabricating metallic microcomponents. Corrosion and fatigue properties of microsized specimens were carried out on the microsized 304 SS cantilever beams by a newly developed fatigue testing machine. The results show that the microsized 304 SS specimens appear to have an improved resistance towards localized corrosion compared to ordinary-sized 304 SS speci- mens after the static corrosion testing. The testing result shows that the presence of corrosive solution reduces the fatigue lifetime of the 304 SS specimen by a factor of 10–100. The maximum bending loads measured by fatigue testing machine decrease rapidly at the terminal stage of environment assisted fatigue testing. Corrosion fracture first occurred at the range of notch with a higher tensile bending stress, and exhibited clear evidence of trans-columnar fracture detected by SEM (scanning electron microscopy).Qiang Zhang Xingpeng Guo Nengli Dai Peixiang Lu 2009Journal of Materials Science & Technology2009,25,2:3
2Efficient near-infrared quantum cutting in Ce 3+ –Yb 3+ codoped glass for solar photovoltaic显示文摘Zijun Liu Jinyan Li Luyun Yang Qiaoqiao Chen Yingbo Chu Nengli Dai 2014Solar Energy Materials and Solar Cells2014,,:1
3显示文摘Yang Jianhu Dai Nengli Dai Shixun 2003Chemical Physics Letters2003,376,:1
4Effect of Yb3+ concen-tration on the broadband emission intensity and peak wave-length shift in Yb/Bi ions co-doped silica-based glasses显示文摘Dai Nengli Xu Bing?Jiang Zuowen 2010Op-tics Express2010,30,18:1
5Effect of Bi2O3 on the Spectroscopic Properties of Erbium-doped Bismuth Silicate Glasses显示文摘Jianhu Yang Shixun Dai Nengli Dai 2003J Opt Soc Am B2003,20,5:1
6Investigation on nonradiative decay of 4I13/2→4 I15/2 transition of Er3+-doped oxide glasses显示文摘 DAI Shixun DAI Nengli 2004J Lumin2004,106,:1
7Improvement of radiation resistance by introducing CeO 2 in Yb-doped silicate glasses显示文摘Yubang Sheng Luyun Yang Huaixun Luan Zijun Liu Yang Yu Jinyan Li Nengli Dai 2012Journal of Nuclear Materials (-)2012,,1:1
8Enhancement of Upconversion Luminescence in Er3+-doped Tellurite Glasses due to the Introduction of PbCl2显示文摘Jianhu Yang Nengli Dai Shixun Dai 2003Chemical Physics Letters2003,376,:1
9On-chip ultrafast pulse generation based on graphene-silicon hybrid waveguides显示文摘On-chip ultrafast mode-locking lasers are basic building blocks for the realization of a chip-based optical frequency comb.In this paper,an ultrafast saturable absorber made up of a graphene pad on top of a silicon waveguide is applied to implement an ultrafast pulse laser.Benefiting from the small mode area of the graphene/silicon hybrid waveguide,the saturable pulse energy is reduced by two orders of magnitude compared with the fiber.A mode-locked pulse with a duration of 542 fs and a repetition rate of 54.37 MHz is realized.Pump–probe measurement shows that the carrier relaxation process of free carrier recombination with atomic-thin graphene/silicon junctions is three orders of magnitude faster than silicon,which plays a fundamental role in pulse narrowing.The chip-scale silicon ultrafast laser lays a foundation for a new class of nonlinear devices,in which a combination with multiple functional silicon photonic circuits enables efficient nonlinear interaction at the micrometer scale and less than 1 W of power consumption.MENG DENG ZICHUN LIAO YANKAI CHEN NINGNING YANG XU YAN CHI ZHANG NENGLI DAI YI WANG 2021Photonics Research2021,9,9:0
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