-
N. Cheverev,
V. Glukhikh, O. Filatov,
V. Belykov,
V. Muratov,
S. Egorov,
I. Rodin,
A. Malkov,
M. Sukhanova,
S. Gavrilov, [......],
V. Sytnikov,
A. Rychagov,
A. Taran,
A. Shikov,
V. Pantcyrny,
A. Vorobieva,
E. Dergunova,
I. Abdukhanov,
K. Mareev,
N. Grysnov
[show abstract]
[hide abstract]
ABSTRACT: A single layer Toroidal Field Conductor Insert (TFCI) coil for testing at 46 kA in the 13 T background magnetic field generated by the Central Solenoid Model Coil (CSMC) of the International Thermonuclear Experimental Reactor (ITER) has been manufactured by a collaboration of Russian scientific-industrial institutions. The report contains a brief description of the technique and tooling used for the 1152 Nb<sub>3</sub>Sn strand, thin-wall Ti jacket, 45-m length cable-in-conduit conductor manufacturing, its wounding into the coil, end bending, terminal joint preparation, heat treatment in a high-vacuum electrical oven, insulation and transfer into the spiral grooves from inside of a cylindrical stainless steel mandrel, and vacuum-pressure impregnation with epoxy.
IEEE Transactions on Appiled Superconductivity 04/2002; · 1.04 Impact Factor
-
V. Sytnikov,
N. Cheverev,
S. Egorov, O. Filatov,
S. Gavrilov,
A. Malkov,
I. Rodin,
A. Rychagov,
A. Shikov,
V. Shpeizman,
A. Suhanova,
A. Taran
[show abstract]
[hide abstract]
ABSTRACT: The superconducting cable-in-conduit conductor (CICC) for the TF Coil Insert (TFCI) consists of the cable (1152 superconducting Nb<sub>3</sub>Sn strands of 0.81 mm diameter) jacketed by welded titanium conduit. All superconducting strands are covered by Cr layer of near 2.5 μm thickness and cabled in five stages. The sub-cables and the full cable are wrapped by the thin SS tape. The manufacturing procedure was carried out for a jacketing of cable by the tubes of titanium (2.0 mm thickness). This paper presents the description of the conductor manufacturing process. cabling, welding of conduit, insertion of cable, compaction, winding of coil and QA procedure. The coil of TFCI was made of the superconducting conductor successfully.
IEEE Transactions on Appiled Superconductivity 04/2002; · 1.04 Impact Factor
-
I. Abdioukhanov,
V. Beliakov,
N. Cheverev,
E. Dergunova, O. Filatov,
S. Kouznetsov,
K. Mareev,
V. Pantsyrnyi,
I. Rodin,
A. Silaev,
I. Sinitsyn,
A. Shikov,
V. Sytnikov,
A. Vorobieva
[show abstract]
[hide abstract]
ABSTRACT: The Russian Toroidal Field (TF) Coil-Insert for a model coil of the Central Solenoid (CS) with Nb<sub>3</sub>Sn cable-in-conduit conductor (CICC) in the Ti conduit was created in frame of the International Thermonuclear Experimental Reactor (ITER) Project. The schedule of Nb<sub>3</sub>Sn CICC heat treatment was developed and optimized during preliminary study. Heat treatments of Nb<sub>3</sub>Sn CICC sample and "dummy" CICC (the "dummy" CICC spiral was identical to the Nb<sub>3</sub>Sn one with one exception: the copper wires with Cr-covering of the same size were used instead of the Nb<sub>3</sub>Sn strands) were performed. The results of the study of the CICC elements, including jacket material, before and after heat treatment are described. The heat treatment conditions were developed and the heat treatment regulations were corrected on base of the results obtained.
IEEE Transactions on Appiled Superconductivity 04/2002; · 1.04 Impact Factor
-
A. Zhukovsky,
J. Schultz,
B. Smith,
A. Radovinsky,
D. Garnier, O. Filatov,
V. Beljakov,
S. Egorov,
V. Kuchinsky,
A. Malkov,
E. Bondarchouk,
V. Korsunsky,
V. Sytnikov
[show abstract]
[hide abstract]
ABSTRACT: The charging coil (C-coil) for the joint Columbia University/MIT
Levitated Dipole Experiment (LDX) is under development jointly by MIT
and the Efremov Institute. The NbTi superconducting C-coil serves to
charge/discharge inductively the floating superconducting magnet to/from
2277 A when it is resting in the charging port at the bottom of the LDX
vacuum vessel. The C-coil is designed for 3200 charge-discharge cycles.
The solenoid magnet is installed in a low heat leak liquid helium
cryostat with a warm bore of more than 1 m. The magnet protection system
has an external dump resistor, which dissipates most of the 12 MJ stored
during a quench
IEEE Transactions on Appiled Superconductivity 04/2001; · 1.04 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Achievements in the technology of superconducting magnets for the
tokamak fusion devices contribute to the applicability of GJ-range SMES
for the utilities by means of using already developed components and
constructed production lines. The paper presents the technologies
developed by the NIIEFA, VNIIKP and VNIINM, institutes, covering most of
the critical items needed to construct the GJ-range SMES devices for the
utility needs. That includes software packages for the supporting
analysis and SMES optimization, heavy current CICC production lines with
the length of pull-through jacketing tooling of up to 1 km, 30 kV 40
kA-range cryogenic current leads and 30 kV high-pressure insulating
breaks for “cold” and “warm” helium
communications, various types of heavy-current 30 kV range commutating
equipment, including superconducting switches, and cryogenic test
facilities for the acceptance tests of the produced conductors, current
leads and insulation breaks
IEEE Transactions on Appiled Superconductivity 04/2000; · 1.04 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Problems of manufacturing wires for the ITER magnetic system are
considered. Results for Nb<sub>3</sub>Sn wires 0.80-0.85 mm in dia.
manufactured using bronze technology under commercial conditions are
given. Wires containing up to 45,000 filaments with volume fractions of
copper stabilizer up to 56%, chromium coatings 2 mm thick and having
critical current densities (non-Cu) up to 650 A/mm<sup>2</sup> (12T,
4.2K) are discussed. Wires with extended tin sources and volume
fractions of copper stabilizer equal to 60% are investigated. J<sub>c
</sub> (non-Cu) for such wires 0.85 mm in dia. reaches 1000 A/mm<sup>2
</sup> (12T, 4.2K) with hysteresis losses <550
mJ/cm<sup>3</sup>
IEEE Transactions on Magnetics 08/1994; · 1.36 Impact Factor
