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: In this research work, extraction and purification of germanium from zinc leach residues (ZLR) were investigated. The results of ICP, XRF, and atomic adsorption spectroscopy (AAS) tests show that contents... hydrometallurgical methods to extract and purify zinc. Zinc plant residues (ZPR) produced from zinc hydrometallurgical plant, include many valuable elements such as lead, iron, germanium, nickel, cobalt......
Effect of Catalyst on the Formation of Silica Coating on Nickel Substrate by Sol -Gel Processing Ali Ghasemi1,Ali Ashrafi1,M.A.Golozar1,F.Ashrafizadeh1 (1.Materials Engineering Department, Isfahan... that hydrochloric acid, acetic acid, ammonia and acetic acid - ammonia are suitable catalytic agents for silica coating formation on nickel type substrate. 关键词:: sol-gel; silica; coating; catalyst; [全文内容正在添加中] ......
germanium(Ge) nanowires and P-doped Ge nanowires on Si(111) substrate were investigated,the phosphorus(P)-doping in Ge nanowires was also characterized.Vapor liquid solid-low pressure chemical vapor...P-doped Germanium Nanowires with Fanobroadening in Raman Spectrum何亮,XIONG Biao,ZHOU Peng,LUO Wen,SONG Peishuai,WANG Xukun,HAO Zhimeng,YANG Xiao,NIU Chaojiang,TIAN Xiaocong,YAN Mengyu,麦立强State Key......
in proper alkali environment, and the hardness was close to substrate material hydrates. According to the experiment results, we chose the concentration of silica abrasive was 40%, and the particle... value range is 10-12, which can ensure the floatability of silica abrasive in slurry and high removal rate. After polishing and cleaning, the substrate surface was measured by AFM (Fig.4). Under......
Germanium Production in ChinaShen Huasheng;General Research Institute for Non-ferrous Metals, Beijing 100088摘 要:<正>1 .Introduetion Germanium differs from other metals for its semieonducting ProPerties.The first major stud-ies of solid state Physies in utilizing semieondueting ProPerties were due Primarily to the availabili-ty of high Purity......
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vision devices in military equipment, infrared night vision systems for tanks, and infrared thermal imaging weapon defense systems. At the same time, the solar germanium-based substrate batteries... Mechanical parameters of materials obtained from experiment 3.2 Mechanical property curves and surface topography Figure 2 shows the load-depth curves of germanium single crystal of different......
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is composed by SiO2 nanoparticles. Thermogravimetric analysis (TGA) results indicate that the silica contents in the composite microspheres range from 12% to 69% (mass fraction). AFM tests results...-gel method in alkaline NH4OH/ethanol solutions. The silica content of composite microspheres can be controlled by adjusting the concentration of tetraethoxysilane (TEOS) in the reaction system......
nanofilm from nanofilm/substrate heterostructure system, a releasable organic substrate is very important. The suitable releasable organic substrate are acrylics, cellulose or vinyl resins. So far... acrylics substrate had been resolved from brass/acrylics heterostructure system with alcohol, brass film was obtained through a centrifugal filter. Then, alloy film was dissolved with 6.5% nitric acid......
