TY - JOUR
T1 - Study on Nb APC Nb-Ti Superconductor Made by Powder Metallurgy
AU - Yan, Lingxiao
AU - Guo, Qiang
AU - Tang, Bin
AU - Wang, Ruilong
AU - Zhang, Kailin
AU - Zhou, Zijing
AU - Liu, Xianghong
AU - Feng, Yong
AU - Li, Jianfeng
AU - Zhang, Pingxiang
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2024/5/1
Y1 - 2024/5/1
N2 - The incorporation of Artificial Pinning Centers (APC) into Nb-Ti superconductors has been demonstrated as an effective method for enhancing their performance. Typically, APC Nb-Ti superconductors are fabricated using the Powder-Metallurgy technique, which involves the utilization of fine Nb-Ti powder and APC powder as precursors. The efficacy of APCs is largely determined by their size, quantity, and distribution, which are crucial factors influencing the Critical Current Density (Jc) of APC Nb-Ti superconductors. In this study, various batches of Nb-Ti and Nb powder with particle sizes ranging from 15 to 150 microns and different ratios were employed to produce APC Nb-Ti superconductors. We explored the influence of Nb particle size and shape on the superconducting properties and microstructure of APC Nb-Ti superconductors. Experimental findings indicate that Nb-APC Nb-Ti superconductors exhibit enhanced Critical Current Density at lower magnetic fields. Furthermore, reducing the processing strain notably improves the Critical Current Density. The Critical Current Density of Nb-APC Nb-Ti superconductors reached 7730 A/mm2 at 2T, following a heat treatment of 400 °C for 20 hours, repeated three times, and utilizing Nb powder with sizes between 50 and 150 μm.
AB - The incorporation of Artificial Pinning Centers (APC) into Nb-Ti superconductors has been demonstrated as an effective method for enhancing their performance. Typically, APC Nb-Ti superconductors are fabricated using the Powder-Metallurgy technique, which involves the utilization of fine Nb-Ti powder and APC powder as precursors. The efficacy of APCs is largely determined by their size, quantity, and distribution, which are crucial factors influencing the Critical Current Density (Jc) of APC Nb-Ti superconductors. In this study, various batches of Nb-Ti and Nb powder with particle sizes ranging from 15 to 150 microns and different ratios were employed to produce APC Nb-Ti superconductors. We explored the influence of Nb particle size and shape on the superconducting properties and microstructure of APC Nb-Ti superconductors. Experimental findings indicate that Nb-APC Nb-Ti superconductors exhibit enhanced Critical Current Density at lower magnetic fields. Furthermore, reducing the processing strain notably improves the Critical Current Density. The Critical Current Density of Nb-APC Nb-Ti superconductors reached 7730 A/mm2 at 2T, following a heat treatment of 400 °C for 20 hours, repeated three times, and utilizing Nb powder with sizes between 50 and 150 μm.
KW - APC Nb-Ti superconductor
KW - critical current density
KW - Nb-Ti superconducting wire
UR - http://www.scopus.com/inward/record.url?scp=85187310031&partnerID=8YFLogxK
U2 - 10.1109/TASC.2024.3363683
DO - 10.1109/TASC.2024.3363683
M3 - 文章
AN - SCOPUS:85187310031
SN - 1051-8223
VL - 34
SP - 1
EP - 5
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 3
M1 - 6001205
ER -