Superconducting properties of multifilamentary 10‐μ niobium carbonitride fibers have been investigated. Niobium carbonitride has Tc's to 18 K and Hc2's to 120 kOe. Critical current densities and their temperature dependence and the magnetic field dependence of the hysteretic loss have been determined from magnetization measurements. The fibers had Jc's in the range of 104 A/cm2 for fields less than 50 kOe at 4.2 K. No flux jumping was observed, indicating that the fibers were intrinsically stable without a stabilizing matrix. The field dependence of the hysteretic loss was ∝ H2.4 for partial penetration.
REFERENCES
1.
2.
James Economy, Ruey Yuan Lin, William D. Smith, and C. K. Jun, Air Force Materials Laboratory Report No. AFML‐TR‐72‐189, 1972 (unpublished).
3.
N.
Pessall
, C. K.
Jones
, H. A.
Johansen
, and J. K.
Hulm
, Appl. Phys. Lett.
7
, 38
(1965
).4.
N. Pessall, J. K. Hulm, and M. S. Walker, Air Force Materials Laboratory Report No. AFML‐TR‐67‐168, 1967 (unpublished).
5.
F. J.
Darnell
, P. E.
Bierstedt
, W. O.
Forshey
, and R. K.
Waring
, Jr., Phys. Rev.
140
, A1581
(1965
).6.
J. R.
Gavaler
, M. A.
Janocko
, and C. K.
Jones
, Appl. Phys. Lett.
19
, 305
(1971
).7.
Melvin C.
Ohmer
and John P.
Heinrich
, J. Appl. Phys.
44
, 1804
(1973
).8.
P. F.
Dahl
, G. H.
Morgan
, and W. B.
Sampson
, J. Appl. Phys.
40
, 2083
(1969
).9.
S. L. Wipf, Proceedings of the 1968 Summer Study on Superconducting Devices and Accelerators, BNL 50155 (C‐55), 511 (1968).
10.
This content is only available via PDF.
© 1974 American Institute of Physics.
1974
American Institute of Physics
You do not currently have access to this content.
