A.R. Rhamdani, M.A. Rhamdhani
Rare earth elements (REEs), particularly lanthanum (La), are gaining attention as alloying agents to enhance the properties of aluminum. This study aims to explore the process of aluminothermic reduction of lanthanum oxide (La2O3) using aluminum as a reductant. A systematic investigation was conducted through differential scanning calorimetry (DSC) measurements combined with microstructural analysis. The results indicate that the reactions between aluminum and La2O3 are rapid, completing within approximately 15 minutes for a mixture containing Al–10 wt pct La2O3. The final products include a mixture of aluminum, aluminum oxide, and Al11La3. The reaction mechanism was further delineated using DSC for Al–50 wt pct La2O3 mixtures, revealing a complex multi-step pathway involving transformations of La2O3 into Al7La33O60, AlLaO3, and Al11LaO18. Kinetic analysis suggests the reaction is limited by diffusion. Overall, this study demonstrates the efficacy of metallothermic reduction as a viable method for producing aluminum-rare earth alloys, highlighting its potential for developing advanced materials with superior properties.
@article{ac4ac929-6f0e-4402-abe2-6b9a18f50c4e,
title={2026 Rhamdani Aluminothermic Lanthanum Oxide},
author={A.R. Rhamdani and M.A. Rhamdhani},
year={2026},
language={en}
}TY - JOUR TI - 2026 Rhamdani Aluminothermic Lanthanum Oxide AU - A.R. Rhamdani AU - M.A. Rhamdhani PY - 2026 LA - en ER -
Sadia Ilyas, Jae-chun Lee
The feasibility of biometallurgical processing for recovering heavy metals, precious metals, and rare earth elements from waste electrical and electro
This paper addresses the challenge of assessing the feasibility of wind power plant projects at sites with insufficient or no local historic wind data
Important advances in electrochemical engineering technology over the last three decades have fostered the development of a lternative methods to alle
Increasing volumes of waste printed circuit boards from obsolete electronic equipment posed escalating environmental risks and resource losses due to