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:The effects of rare-earth element Y in refining impure copper were investigated in this paper. The composition, microstructures, and corrosion resistance properties of impure copper before and after refinement with Y were investigated using direct-reading spectrometry, inductively coupled plasma atomic emission spectrometry, optical microscopy, scanning......
Trans. Nonferrous Met. Soc. China 30(2020) 1574-1581 Effects of rare earth Ce addition on microstructure and mechanical properties of impure copper containing Pb Hai-hong LI1, Xiao LIU1, Yang LI1... April 2020 Abstract: The effects of rare earth Ce on the microstructure and mechanical properties of impure copper containing Pb were investigated using OM, SEM, EPMA, TEM and tensile testing. TEM......
); impure helium; hot steam 1 Introduction Among the generation-IV reactor types which had been selected by international forum [1], the very high temperature reactor (VHTR) is the most promising near... mixture gases will be used to produce hydrogen [5]. Therefore, the oxidation resistance and their performance of oxide layer in impure helium and hydrogen added steam environments at high......
impure helium at 950 C were investigated based on the thermodynamics and the corrosion tests were performed in a temperature range of 850e950 C during 10e250 h for commercial Alloy 617 as a candidate... and heat treatment conditions.From the reaction rate constant obtained from an impure helium control system for a material evaluation,it was predicted that the outer oxide layer thickness,internal oxide......
RESEARCH ON CLEANUP AND ACTIVATIONOF SEPIOLITE李虹Wuhan University of Technology摘 要:<正> A simple process of purifying and activating sepiolite is introduced. Impure minerals in sepiolite can be removed by fully agitating the sepiolite suspension to which a few amount of disperser has been added. After being purified and activated, fine sepiolite......
pressure.In order to control the impure phasesduring the whisker formation,O2 partial pressure is the most important factor.关键词:......
as an emitting material in electroluminescence.The properties of monolayer device with the rate of 1000 r·min-1 (70 nm) and the impure concentration of 1∶5 were the best.And the highest brightness......
of fixation ratios was likely attributed to the presence of impure elements, such as sodium and phosphorus in MSS. In addition, high concentrations(eg, 1.7 wt%) of chlorine in MSS led to metal chloride formation that could vaporize Cu, Cr, Ni, and Zn. To summarize, introducing MSS would decrease the fixation ratios of heavy metals due to the presence of impure elements, such as sodium and phosphorus......
A/m coercive force and 4.0 A·m2/kg remnant magnetization,respectively.The investigation indicates that the biogenic magnetite nanoparticles mineralized in the chiton are impure in composition and non......
Synthesis of LiFePO4 using FeSO4·7H2O byproduct from TiO2 production as raw materialPENG Zhongdong, CAO Yanbing, ZHOU Yulin, and HU Guorong School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China摘 要:As the byproduct of TiO2 industrial production, impure FeSO4·7H2O was used for the synthesis of LiFePO4......
