Comparative analysis of MgB 2 superconducting wire for various cooling treatments through a sintering process

• Published in: IOP conference series. Materials Science and Engineering 2023-09, Vol.1291 (1), p.12019
• Main Authors: Herbirowo, S, Pramono, A W, Sofyan, N, Yuwono, A H, Imaduddin, A
• Format: Article
• Language: English
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/1291/1/012019

This paper presents a comparative analysis of MgB 2 superconducting wire for various cooling treatments. The study investigates the effect of different cooling rates on the phase transformation, hardness, microstructure, and properties of the MgB 2 wires. The samples were prepared by the powder-in-tube method using a mixture of magnesium and amorphous-boron powders through the sintering and hot rolling process The wires were cooled down at three different conditions, followed by characterization using X-ray diffraction, scanning electron microscopy, and hardness measurements. The results show that the cooling rate after sintering significantly impacted the microstructure and hardness strength of the MgB 2 wires. A slower cooling rate led to a denser microstructure and higher hardness properties, while a faster cooling rate resulted in a more porous microstructure and lower hardness. However, it can be recommended further deformation for smaller wire sizes. These findings could provide insights into optimizing the sintering process to produce high-performance MgB 2 .