Revolutionizing Clean Energy: How IG Processed Superconducting Super Magnets Could Save the Planet, Sushma Miryala, UG '25 (2771013)
The consequences of global warming are being felt worldwide, and rising temperatures are having catastrophic effects through the forms of heatwaves, floods, wildfires, sea level rises, droughts, and other natural disasters. It is thus crucial to reduce greenhouse gas emissions and prevent further warming; to achieve this goal, there must be an increase in novel, renewable energy sources such as superconducting super magnets. Superconducting super magnets or YBa2Cu3Oy (Y-123) produced utilizing the top-seeded infiltration growth have several advantages in this matter compared to those produced using other melt process techniques. The IG process promotes no shrinkage, a limited number of pores, and an uniform secondary phase particle dispersion in the Y-123 matrix. In this study, a IG processed large single-grain Y-123 was fabricated utilizing Yb-123 + liquid (1:1) as a liquid source. This discovery of a new liquid phase enables the growing of the bulk superconductor in a shorter duration, especially taking less than 50% of the time it took in growing the same in the past. Magnetization measurements by SQUID magnetometer displayed a sharp superconducting transition with Tc,onset at 92.1K, and the critical current density at 77K and self-field was 39,000A/cm2. Trapped field results also confirmed that single grain Y-123 samples were produced utilizing the above process. Therefore, the results prove that Yb-123 + liquid (1:1) as a liquid source is truly effective in producing bulk material utilizing the IG process, making its adaptation attractive for industrial applications which will drive progress towards a sustainable future.