Publications by authors named "Varatharaja Nallathambi"
The demand for strong, compact permanent magnets essential for the energy transition drives innovation in magnet manufacturing. Additive manufacturing, particularly Powder Bed Fusion of metals using a laser beam (PBF-LB/M), offers potential for near-net-shaped Nd-Fe-B permanent magnets but often falls short compared to conventional methods. A less explored strategy to enhance these magnets is feedstock modification with nanoparticles.
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- * Accurate hydrogen mapping and analysis at the microstructural level are essential for understanding how hydrogen causes material embrittlement and impacts future fusion power plants.
- * A workshop at the Max-Planck Institute aimed to establish best practices for using atom probe tomography (APT) to improve the accuracy and reporting of hydrogen analysis in materials.
Article Synopsis
- Bimetallic nanostructures, such as Au-Pt aerogels, show great promise as enzyme-mimics, but understanding how their structure affects catalytic performance is challenging.
- This study successfully creates three distinct structural configurations (segregated, alloy, core-shell) and finds that segregated structures significantly outperform the others in catalytic activity for peroxidase and glucose oxidase reactions.
- The enhanced performance of segregated Au-Pt aerogels is due to their high-density interface boundaries, which allows for better substrate interaction and efficiency, potentially expanding their uses in biosensing and biological detection.