Effects of HIPping on bronze-processed multifilamentary Nb3Sn wires and magnets
β Scribed by Y.S. Hascicek; M.J. Goringe; H. Jones
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 458 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
β¦ Synopsis
Short Jc samples and small coils wound from bronze-processed multifilamentary Nb3Sn wires were reacted at 700Β°C, both under vacuum and under 20 MPa argon pressure for various times and subsequently tested in an applied transverse magnetic field at 4.2 K. High pressure reaction enhanced the Nb3Sn layer growth and, in turn, increased the overall current-carrying-capacity of the short samples by 30-40%, and the quench current of the small magnet coils by 18-30% at all fields in the range 12-15 T.
π SIMILAR VOLUMES
A.c. losses for a practical bronze-processed Nb3Sn multifilamentary composite were measured over a wide range of amplitudes (0 ~ B m ~< 14 T, 0 ~Bdc <~ 1 0 T) in transverse magnetic field with trapezoidal wave forms. The composite had a Nb or Ta barrier for ptoecting the Cu stabilizer from Sn diffus
The critical current degradation of multifilamentary NbsSn superconducting composites strained mechanically at room temperature has been investigated. The experimental results show that the effects of the Nb$n layer thickness and the speci.men wire structure, such as monolithic and stranded cable on
The stability of two kinds of conductors, CuNb/(Nb,Ti)~Sn and Cu/(Nb,Ti)~Sn has been studied in order to obtain basic information for the future compact design of high field superconducting magnets using a (Nb,TiI,Sn conductor stabilized with a high strength-high conductivity CuNb in-situ composite.
order to know the dependency of global pinning force of Nb,Sn compound on grain 'size and upper critical magnetic field, the global pinning force was measured at 3--l 5 T using bronze-processed multifilamentary composites. The grain size and upper critical magnetic field were varied by two types of