Formation of Interatomic Bonds of the Fumed Synthesis of Composites SiO2+Al2O3

Ya.V. Zaulychnyy; М.V. Karpetz; Y.V. Yavorskyi; V.М. Gun'ko; V.I. Zarko; V.Ya. lkiv

doi:10.15330/pcss.16.2.425-431

Authors

Ya.V. Zaulychnyy Physical Engineering Faculty, National Technical University of Ukraine “Kyiv Polytechnical Institute”
М.V. Karpetz Frantsevich Institute for Problems of Materials Science
Y.V. Yavorskyi Physical Engineering Faculty, National Technical University of Ukraine “Kyiv Polytechnical Institute”,
V.М. Gun'ko Chuiko Institute of Surface Chemistry
V.I. Zarko Chuiko Institute of Surface Chemistry
V.Ya. lkiv Physical Engineering Faculty, National Technical University of Ukraine “Kyiv Polytechnical Institute”,

DOI:

https://doi.org/10.15330/pcss.16.2.425-431

Keywords:

Al2O3, SiO2, ultra-advanced X-ray spectroscopy, pyrogenic synthesis, radiographic analysis

Abstract

Crystalline and electronic structures of SiO₂/Al₂O₃mixtures have been analyzed using X-ray diffraction (XRD) and ultra-soft X-ray emission spectroscopy (USXES). Comparison of ultrasoft X-ray emission AlLα-, SiLα- and OKα-bands redistribution Alsp-, Sisp- and Op-valence electrons when changing the mass ratio (0,23Al₂O₃+0,77 SiO₂;, 0,30Al₂O₃+0,70SiO₂; 0,75Al₂O₃+25 SiO₂) and depending on the method of obtaining them. Expansion OKα-emission bands showed an increase in population of Op_π-levels of oxygen in the formation of pyrogenic composites with different contents of aluminum oxide and silicon dioxide. Analysis AlLα-, SiLα- emission bands allowed to explain the increase of population Op_π-levels of oxygen and present the morphology formation of particles different of pyrogenic composites during synthesis.

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