A DSC- and X-ray Diffraction Study of Mixtures of Aluminum with 50 wt % of Aluminum Hydrate after Plastic Deformation under High Pressure

Al + 50 wt % Al(OH) 3 mixture was subjected to plastic deformation under a pressure of 1–4 GPa on an anvil-type high-pressure apparatus. The samples were characterized by the methods of differential scanning calorimetry and X-ray diffraction. The baric dependences of the enthalpy of aluminum oxidati...

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Bibliographic Details
Published inProtection of metals and physical chemistry of surfaces Vol. 58; no. 1; pp. 35 - 41
Main Authors Zhorin, V. A., Kiselev, M. R., Shiryaev, A. A., Kotenev, V. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.02.2022
Springer Nature B.V
Subjects
Aluminum
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coherent scattering
Corrosion and Coatings
Electronic structure
Enthalpy
High pressure
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Metallic Materials
Mixtures
Nanoscale and Nanostructured Materials and Coatings
Oxidation
Plastic deformation
Tribology
X-ray diffraction
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Summary:Al + 50 wt % Al(OH) 3 mixture was subjected to plastic deformation under a pressure of 1–4 GPa on an anvil-type high-pressure apparatus. The samples were characterized by the methods of differential scanning calorimetry and X-ray diffraction. The baric dependences of the enthalpy of aluminum oxidation and melting and the baric dependence of sizes of coherent scattering regions displayed the extremum points at the pressures of 1.5 and 2.5 GPa. The reasons for these features are the variations in the electron structure of aluminum and/or the mechanism of aluminum deformations at the specified pressures.
ISSN:2070-2051
2070-206X
DOI:10.1134/S2070205122010191