欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用高压放电的方式对材料进行击穿，可以方便地制造纳米颗粒．搭建了高压击穿实验装置，对铜丝进行高压击穿实验；分别采用透射电子显微镜（TEM）、扫描电子显微镜（SEM）和元素能谱（EDS）、X射线衍射（XRD）测试，对铜丝击穿丝状物进行了形貌和成份分析．研究了铜丝高压击穿后的物相特性．研究结果发现，在高压作用下铜丝被充分电离，产生丝状分布，其构成为纳米颗粒的凝结；纳米颗粒的直径分布主要集中在30—60nm之间；颗粒产物由铜元素和氧元素组成；它们以单晶Cu，Cu2O和CuO组成混合物；粒径大小、产物成分与铜丝长度、直径及电压等因素相关．
英文摘要：
Copper nanoparticles are produced by high-voltage electrical explosion of copper wires. The high-voltage breakdown experimen- tal setup for copper is built. The morphology and composition of the breakdown material are tested by the transmission electron mi- croscopy （TEM） and scanning electron microscopy （SEM）, and X-ray diffraetometry （XRD） and energy dispersive spectroscopy（EDS） methods, respectively. Based on the morphology, size distribution, elemental spectrum （EDS）, and XRD analysis of the breakdown material, the phase characteristics of high-voltage breakdown copper wire are studied. The results show that wire is fully ionized under high pressure, forming a filamentous distribution which is composed of condensation of nanoparticles. The diameters of copper nanoparticles are between 30 nm and 60 nm. The nanoparticles product is composed of Cu and O elements. The product is a mixture of metallic copper, cupric oxide and cuprous oxide. The particle size and its product composition are controlled by varying length and diameter of the copper wire, discharge voltage, etc.
同期刊论文项目
同项目期刊论文
Behaviors of the Rh6G random laser comprising solvents and scatterers with different refractive indi
Synchronization and relative timing jitter measurement of femtosecond and picosecond laser regenerat
Numerical study on the efficient generation of 351nm broadband pulses by frequency mixing of broadba
General features of spatiotemporal instability induced by arbitrary high-order nonlinear dispersions
Experimental research on measuring the fine structure of long pulse in time domain by synchronized u
Study on the Damage of SiO(2) Thin Films on LiNbO(3) Crystal in Optical Parametric Oscillator by XRD
Generation of 534 fs pulses from a passively mode‐locked Nd: CLNGG‐CNGG disordered crystal hybrid la
A broadband frequency-tripling scheme for an Nd:glass laser-based chirped-pulse amplification system
A passivated codoping approach to tailor the band edges of TiO 2 for efficient photocatalytic degrad
Evolution of spatial modulation of broadband laser pulses with different pulse durations in medium w
Versatile temperature-insensitive second-harmonic generation by compensating thermally induced phase
Ultrahigh-Q small-V photonic crystal nanobeam cavities based on parabolic-shaped width and taper hol
A terawatt Nd: glass chirped pulse amplification laser system seeded by two order optical parametric
The spatiotemporal evolution of sinusoidal phase modulated laser and its competitions with noise per
Investigation of tunable stretcher for ultrashort pulses based on silica wires with subwavelength-di
期刊信息
位置：