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The low-cost activated carbon was prepared from sugarcane bagasse, an agricultural waste material, by chemical activation with different reagents. Orthogonal experimental design was applied to study the influence of activation temperature, activation time and chemical ratio of reagents to sugarcane bagasse on the chemical activation process of sugarcane bagasse. The optimal activated carbon was obtained...
In this work are discussed the technology for preparing and characterisation of indium-tin oxide (ITO) and ITO with titanium oxide underlayer thin films with properties appropriate for usage at elevated temperatures as heat reflective coatings and gas sensors. For preparing the samples the methods of radio frequency (RF) and DC-magnetron reactive sputtering were used. Sputtering of indium-tin and...
Ni-doped ZnO(ZnO:Ni)thin film had been studied widely as a ferromagnetic semiconductor, but there are far fewer studies on its infrared characteristics. This paper describes experiments in which Ni-doped ZnO thin films were deposited on quartz glass using a sol-gel process with different sintering temperatures. The infrared characteristics and the effects of the different fabrication processes were...
Nano-crystalline particles of barium hexaferrite have been prepared by co-precipitation route using solution of iron and barium chlorides with a Fe/Ba molar ratio of 12 by addition of NaOH with OH-/Cl- molar ratio of 2. A mixture of water and diethylene glycol with volume ratio of 1:3 was used as a solvent in the process. Dried co-precipitated powder was annealed at various temperatures for 1 h. FTIR,...
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