TY - JOUR
T1 - Fabrication and characterization of MgB2/SS 316L superconducting wire with amorphous boron prepared by sintering and cold rolling
AU - Herbirowo, Satrio
AU - Yuwono, Akhmad Herman
AU - Sofyan, Nofrijon
AU - Tinambunan, Dewi
AU - Nugraha, Heri
AU - Imaduddin, Agung
N1 - Funding Information:
The authors acknowledge the facilities, technical support, and financial support from Universitas Indonesia PUTI Pascasarjana with contract number NKB-301/UN2.RST/HKP.05.000/2022. We also thank H. Yan, L.E. Chow, and A. Ariando from the National University of Singapore Department of Physics for conducting the SQUID measurements.
Publisher Copyright:
© 2023
PY - 2023/1
Y1 - 2023/1
N2 - Magnesium diboride (MgB2) is proposed to be a highly efficient wire with zero resistivity. In this research, Mg powder and amorphous-boron sheathed with a stainless steel (SS) 316L tube and powder-in-tube (PIT) technique were used in order to create a cheaper and potential superconductor that could eventually replace the currently expensive price crystalline boron. Mixed powder was put into SS 316L tube and compacted to avoid oxidation while being sintered at a temperature of 800 °C for one hour, prior to cold rolling with various size reduction. X-ray diffraction (XRD), scanning electron microscopy (SEM), and cryogenic magnet characterization were used to evaluate the crystal structures, surface morphology, and resistivity versus temperature and SQUID measurement for all samples. The XRD analysis revealed that the majority of the MgB2 phase was produced accompanied with a small quantity of MgO and Fe phases. The results of the SEM showed particle agglomeration in the sample's morphology. It has been found that using the size reduction up to 60 % in the cold rolling step, the critical temperature (Tc) onset of the resulting MgB2 was calculated to be 39.25 and 39.44 K, respectively. This results reveal that the fabrication of the superconducting wire can be realized using a more economic raw material and process.
AB - Magnesium diboride (MgB2) is proposed to be a highly efficient wire with zero resistivity. In this research, Mg powder and amorphous-boron sheathed with a stainless steel (SS) 316L tube and powder-in-tube (PIT) technique were used in order to create a cheaper and potential superconductor that could eventually replace the currently expensive price crystalline boron. Mixed powder was put into SS 316L tube and compacted to avoid oxidation while being sintered at a temperature of 800 °C for one hour, prior to cold rolling with various size reduction. X-ray diffraction (XRD), scanning electron microscopy (SEM), and cryogenic magnet characterization were used to evaluate the crystal structures, surface morphology, and resistivity versus temperature and SQUID measurement for all samples. The XRD analysis revealed that the majority of the MgB2 phase was produced accompanied with a small quantity of MgO and Fe phases. The results of the SEM showed particle agglomeration in the sample's morphology. It has been found that using the size reduction up to 60 % in the cold rolling step, the critical temperature (Tc) onset of the resulting MgB2 was calculated to be 39.25 and 39.44 K, respectively. This results reveal that the fabrication of the superconducting wire can be realized using a more economic raw material and process.
KW - Amorphous Boron
KW - Current Density
KW - MgB wire
KW - Sintering-cold rolling
KW - Superconductor
UR - http://www.scopus.com/inward/record.url?scp=85152619835&partnerID=8YFLogxK
U2 - 10.1016/j.mset.2023.04.001
DO - 10.1016/j.mset.2023.04.001
M3 - Article
AN - SCOPUS:85152619835
SN - 2589-2991
VL - 6
SP - 409
EP - 416
JO - Materials Science for Energy Technologies
JF - Materials Science for Energy Technologies
ER -