Laser beams with ns pulse width are generally employed as an excitation source in the process of detecting inclusions and elemental segregation on a workpiece surface by microanalysis of the laser-induced breakdown sp...Laser beams with ns pulse width are generally employed as an excitation source in the process of detecting inclusions and elemental segregation on a workpiece surface by microanalysis of the laser-induced breakdown spectroscopy.In addition,the ablation crater interval of laser sampling on the sample surface is generally 20μm or more.It is difficult to detect the morphology of inclusions smaller than 50μm in diameter and the micro-segregation of elements.However,in this work,when the laser ablation crater is 10μm and the sampling resolution of the laser on the sample surface is 5μm,the morphology and distribution of spherical inclusions(20–60μm)in ductile iron can be detected according to the difference of the Fe spectrum on the Fe matrix and the spheroidal inclusions.Moreover,the distribution of micro-segregation of Mg and Ti elements in ductile iron was also studied.展开更多
High-performance, Si-based three-dimensional （3D） microbattery systems for powering micro/nano- electromechanical systems and lab-on-chip smart electro- nic devices have attracted increasing research attention. Thes...High-performance, Si-based three-dimensional （3D） microbattery systems for powering micro/nano- electromechanical systems and lab-on-chip smart electro- nic devices have attracted increasing research attention. These systems are characterized by compatible fabrication and integratibility resulting from the silicon-based tech- nologies used in their production. The use of support substrates, electrodes or current collectors, electrolytes, and even batteries used in 3D layouts has become increasingly important in fabricating microbatteries with high energy, high power density, and wide-ranging applications. In this review, Si-based 3D microbatteries and related fabrication technologies, especially the pro- duction of micro-lithium ion batteries, are reviewed and discussed in detail in order to provide guidance for the design and fabrication.展开更多
基金supported by the National Key Research and Development Program of China(No.2017YFF0106202)the Key Research Program of Frontier Sciences,Chinese Academy of Sciences(No.QYZDJ-SSW-JSC037)+1 种基金the Liaoning Revitalization Talents Program(No.XLYC1807110)the Youth Innovation Promotion Association,Chinese Academy of Sciences。
文摘Laser beams with ns pulse width are generally employed as an excitation source in the process of detecting inclusions and elemental segregation on a workpiece surface by microanalysis of the laser-induced breakdown spectroscopy.In addition,the ablation crater interval of laser sampling on the sample surface is generally 20μm or more.It is difficult to detect the morphology of inclusions smaller than 50μm in diameter and the micro-segregation of elements.However,in this work,when the laser ablation crater is 10μm and the sampling resolution of the laser on the sample surface is 5μm,the morphology and distribution of spherical inclusions(20–60μm)in ductile iron can be detected according to the difference of the Fe spectrum on the Fe matrix and the spheroidal inclusions.Moreover,the distribution of micro-segregation of Mg and Ti elements in ductile iron was also studied.
文摘High-performance, Si-based three-dimensional （3D） microbattery systems for powering micro/nano- electromechanical systems and lab-on-chip smart electro- nic devices have attracted increasing research attention. These systems are characterized by compatible fabrication and integratibility resulting from the silicon-based tech- nologies used in their production. The use of support substrates, electrodes or current collectors, electrolytes, and even batteries used in 3D layouts has become increasingly important in fabricating microbatteries with high energy, high power density, and wide-ranging applications. In this review, Si-based 3D microbatteries and related fabrication technologies, especially the pro- duction of micro-lithium ion batteries, are reviewed and discussed in detail in order to provide guidance for the design and fabrication.
