ALLOYS FOR THE PRODUCTION OF HYDROGEN AND ACTIVE ALUMINUM OXIDE
Sarmurzina R.G. Boiko G.I. Lyubchenko N.P. Karabalin U.S. Demeubayeva N.S.
2022National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#2022Issue 191 - 98 pp.
The influence of an oxidizing environment (water, hydrogen peroxide, sodium hydroxide, sulfuric and hydrochloric acid) on the yield and rate of hydrogen release, as well as the composition of the resulting oxidation products of an activated aluminum alloy containing activator metals: gallium, indium, tin (5% by weight, Rau-85 alloy), depending on temperature, as well as the dispersion of alloy particles has been studied. The X-ray spectral analysis of the alloy was carried out on the spectrometer X-Ray of Innov-X systems. The microstructure of the alloy and its oxidation products was studied using a scanning electron microscope with energy dispersive X-ray radiation (SEM/EDXs) using an INCA ENERGY spectrometer from OXFORD INSTRUMENTS installed on a Superprobe 733 electron probe microanalyzer from JEOL at an accelerating voltage of 25 kV and a probe current of 25 nA. Based on the microstructure analysis, the phase components of alloys at the grain boundaries of Al have been identified. X-ray diffractometric analysis of the reaction products of the Rau-85 alloy formed in various oxidizing media was carried out on an automated diffractometer DRON-3 with CuКa radiation, a β-filter. Diffractogram shooting conditions: U=35 kV; I=20 mA; shooting θ-2θ; detector 2 deg/min. X-ray diffraction analysis on a semi-quantitative basis was carried out using diffraction patterns of powder samples using the method of equal weights and artificial mixtures. Quantitative ratios of crystalline phases were determined.
Activating additives , Alloys , Aluminum , Hydrogen , Microstructure , Oxidation , X-ray diffraction analysis
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«KAZENERGY» Association, Nur-Sultan, Kazakhstan
Satbayev University, Almaty, Kazakhstan
«KAZENERGY» Association
Satbayev University
10 лет помогаем публиковать статьи Международный издатель
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