(Nb, Ti)₃Sn Superconducting Magnet Operated at 11 K in Vacuum Using High-T_c (Bi, Pb)₂Sr₂Ca₂Cu₃O₁₀ Current Leads

Abstract

A conduction-cooled superconducting magnet using high-T c oxide current leads was successfully demonstrated. We succeeded in constructing the (Nb, Ti)3Sn multifilamentary superconducting magnet system without liquid helium, which is operated at 11 K in vacuum using a cryocooler and generates a magnetic field of 4.6 T in a 50 mm bore (38 mm room temperature bore). Use of (Bi, Pb)2Sr2Ca2Cu3O10 current leads effectively contributed to realization of the compact cryostat with large current leads of 500 A.

Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

“…% Sn. Ternary compound Ti3Nb3Sn2 was found in the isothermal section at 973 K. It was also reported in some literatures [19][20][21]. The crystal structure is same to Nb3Sn [22].…”

Development of large bore superconducting magnet for wastewater treatment application

“…The technology can provide the customer access to high magnetic fields in applications or locations, where the use of liquid helium is difficult or expensive [4,5]. Since the first successful conduction-cooled superconducting magnet demonstrated by K. Watanabe in 1992 [6], the superconducting magnet technology has experienced great advance and has been commercially available. The cryogen-free superconducting magnet system is almost developed toward the high magnetic field generation [7,8].…”

Thermal properties of a large-bore cryocooled 10T superconducting magnet for a hybrid magnet

“…We have developed superconducting magnets which were easy to operate, because superconducting magnets cooled by GiffordMcMahon (GM) cryocoolers, which did not need liquid helium [1], prevailed in many kinds of science fields. Even though we have few knowledge or experiences of low temperature techniques, high magnetic field such as 10 T in a 100 mm room temperature bore can be obtained by cryocooled superconducting magnets [2].…”