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Preparation of CuInSe2 films by ultrasonic electrodeposition-selenization and the improvement of their surface morphologyWANG Yanlaia,NIE Hongbob,and GUO Shijuc a Key Laboratory of Semiconductor...">The CuInSe2 compound was prepared by selenization of Cu-In precursor,which was ultrasonic electrodeposited at constant current.CuInSe2 films were compacted to improve surface morphology.The films were......
morphology and surface oxidation for the particles were investi-gated by using X-ray diffraction and electron microscopy.The results indicated that three types ofthe particles,with the structure of α-Mn...Characterization and Growth Morphology of the Ultrafine Manganese ParticlesJian XU Xiukui SUN Wenxiu CHEN Wenduo WEI State Key Laboratory of RSA,Institute of Metal Research,Academia Sinica,Shenyang......
at 1 380 ℃. Key words: Mo-Ti-Zr alloy rods; rotary forging; relative density; fracture surface morphology ......
density as targets and using the smaller electron beam current are necessary for the best depositional surface quality. 3.2 Micrographs Fig.4 shows the AFM morphology on the free surface.... Fig.4 AFM morphology on free surface of as-deposited TiAl-based alloys sheet Fig.5 Micrographs on cross-section of specimens in various states: (a) As-cast; (b) As-deposited; (c) As-pressed with 1 523......
fibers with different surface morphology were electrochemically treated in 3 wt% NH4HCO3 aqueous solution with current density up to 3.47 A/m 2 at room temperature, and surface structures, surface... electrochemical etching, which resulting in continuous increase of the extent of graphitization on the fiber surface. However, the electrochemical etching was beneficial to getting ordered morphology......
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yield aligned MWNT bundles with a narrow diameter distribution. Key words: aerosol; carbon nanotubes; aligned morphology 1 Introduction Since carbon nanotubes were discovered by Iijima in 1991[1], considerable efforts have been made to study their preparation, growth mechanism and potential applications[2-4]. Aligned and well separated CNT morphology is important for many potential......
, the effect of a polyether additive on zinc electrowinning in Zn(Ⅱ)-NH4Cl-NH3-H2O system was investigated. The effects of different concentration of the additive on surface morphology, crystallographic... to 92.88%, and low energy consumption of 2435.72 kW·h/t is obtained under the optimum concentration of 1.0 g/L for the polyether additive. Key words: polyether; additive; surface morphology; zinc......
enlarges by 31.9% and that of marble in 15 d enlarges by 128.9%. Key words: sphere impact; rock; contact damage; surface elastic modulus; damage morphology 随着工业化和城市化的飞速发展,工业和生活污水对地下工程以及酸雨对石碑,路面等结构的... characterized and potential hazards of contact damage to rock materials were described. The results show that the surface elastic modulus of granite declines slowly while that of marble declines rapidly......
; Abstract: Ag-Sn-Cu-Bi-Ni alloy was internally oxidized in air. The phase constitution, surface morphology and microstructure evolution of the alloy... are uniformly dispersed in the silver matrix. Key words: Ag-Sn-Cu-Bi-Ni alloy; surface morphology; microstructure; internal oxidation <上一页 1 2 3 4 5 6 7 8 9 10 ... 2696 下一页 >
