Oxidation of Aluminum Melts with Rare-Earth Metals
- Authors: Ganiev I.N.1, Ganieva N.I.1, Eshova D.B.1
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Affiliations:
- Nikitin Institute of Chemistry
- Issue: Vol 2018, No 5 (2018)
- Pages: 458-464
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172525
- DOI: https://doi.org/10.1134/S0036029518050063
- ID: 172525
Cite item
Abstract
Thermogravimetry studies show that the oxidation of aluminum–rare-earth metal (R) melts obeys a parabolic law. The true oxidation rate of the melts is on the order of 10–4–10–3 kg/(m2 s). In the Al–R systems, the minimum oxidation rate corresponds to the compositions of intermetallic compounds. The oxidation rate of a melt is shown to increase with temperature. It is found by IRS (infrared spectroscopy) and XRD (X-ray diffraction) that the melt oxidation products consist of γ-Al2O3, R2O3 (R = La, Ce, Pr, Nd, Y, Sc), CeO2, and rare-earth metal monoaluminates RAlO3 (CeAlO3, LaAlO3, NdAlO3).
About the authors
I. N. Ganiev
Nikitin Institute of Chemistry
Author for correspondence.
Email: ganiev48@mail.ru
Tajikistan, Dushanbe, 734063
N. I. Ganieva
Nikitin Institute of Chemistry
Email: ganiev48@mail.ru
Tajikistan, Dushanbe, 734063
D. B. Eshova
Nikitin Institute of Chemistry
Email: ganiev48@mail.ru
Tajikistan, Dushanbe, 734063
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