MELT-TEXTURED SUPERCONDUCTORS
for magnetic bearing, trapped field magnets
The standard form of our bulk HTS is cylinders and bars (see Standard Geomertry). Bespoke geometries and shapes, e.g. segments, rings, squares, are possible upon customer needs.
Y-Ba-Cu-O / Geometry | Parameter | Metrics | T (K) | Conditions |
---|---|---|---|---|
1.5-6.0×104 A/cm2 | 77 K | |||
Critical current density | 1.0-3.0×105 A/cm2 | 4.2 K | Magnetization measurements in self-field | |
Ø30 mm cylinder | Levitation force | 90 N | 77 K | Standard NdFeB magnet
Ø25mm*20 mm B=0.4 T (at surface) |
Maximum trapped field | 1.2 T | 77 K | 1.4 T field cooling magnetization (FC) | |
Ø30 mm mini-magnet | 16.9 T | 30 K | 18 T FC | |
Ø30 mm ring x Ø6 mm | 9.8 T | 25 K | 10 T FC |
Cylinder | Bar | ||
---|---|---|---|
Diameter (mm) | Thickness (mm) | Length x Width x Height (mm3) | Comment |
30 | >13 | 40x40x10-13 | 1-seed |
33 | >13 | 66x33x10-12 | 3-seed |
40 | >13 | 80x40x12 | 3-seed |
45 | >13 | ||
55-60 | >13 |
Property | Metric | Comment |
---|---|---|
Transition temperature | 90-92 K | |
Resistivity | 0.6-0.7 mOhm/cm | at 300 K |
Density | 6.38 g/cm3 | theoretical |
5.95 g/cm3 | experimental (93 %) | |
Specific heat | 0.43 Ws/gK | at 300 K |
Heat conductivity | 4-8 W/mK | average |
Linear expansion | 5-12 x10-6 1/K | |
Tensile strength | 25-30 MPa |
BULK MACHINING
- High-quality
- High precision ~ 0,1 mm
Reinforcement for high trapped field
Complex shape and form