Material Specification for Bi:2223; [Bi(Pb)-Sr-Ca-Cu-O]
Process: Solid State Reaction
Notes: "Powders of Bi2O3, PbO, SrCO3, CaCO3 and CuO were mixed in a suitable composition and then were calcined and ground repeatedly. The ground powder was put in a silver tube and then drawn to a round wire. This was rolled to a tape wire and sintered. The deformation and sintering were repeated. The obtained wires were cut in a typical length of 20 mm. The c-axis of the tape specimen was oriented normal to the flat surface. The cross section of the specimens was typically 4 mm in width and 0.1 mm in thickness. The thickness of the superconducting layers was about 50 µm."
Formula: Bi2-xPbxSr2Ca2Cu3Oy
Informal Name: Bi:2223
Chemical Family: Bi(Pb)-Sr-Ca-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for Bi:2223; [Bi(Pb)-Sr-Ca-Cu-O]
| Critical Temperature (K) |
| 107.7 |
Measurement Method: Four-probe method
"The critical temperature (was)... measured resistively... the irreversibility field was measured in terms of the four probe method... In the irreversibility line measurement, the temperature was increased with application of the transport current of a density of 1.0 x 10
5 A/m
2 under the DC magnetic field, and the irreversibility temperature, T
i(B), was determined by the temperature at which the voltage of 0.1 µV was detected between the voltage terminals of 3 mm. The irreversibility field, B
i(T), is obtained as the inverse relation of the observed irreversibility temperature, T
i(B)."
Cautions: Evaluated Data
Critical Current Density for Bi:2223; [Bi(Pb)-Sr-Ca-Cu-O]
| Temperature (K) |
Magnetic Field (T) |
Critical Current Density (kA/cm2) |
| 4.2 |
0.5 |
362 |
| 4.2 |
0.6 |
295 |
| 4.2 |
1.0 |
258 |
| 4.2 |
2.0 |
225 |
| 4.2 |
3.0 |
184 |
| 4.2 |
4.0 |
161 |
| 30 |
0.2 |
241 |
| 30 |
0.5 |
172 |
| 30 |
1.0 |
140 |
| 30 |
2.0 |
107 |
| 30 |
3.0 |
93 |
| 30 |
4.0 |
82 |
| 30 |
5.0 |
76 |
| 40 |
0.0 |
184 |
| 40 |
0.2 |
211 |
| 40 |
0.5 |
131 |
| 40 |
1.0 |
93 |
| 40 |
2.0 |
76 |
| 40 |
3.0 |
62 |
| 40 |
4.0 |
54 |
| 40 |
5.0 |
47 |
| 50 |
0.2 |
114 |
| 50 |
0.5 |
67 |
| 50 |
1.0 |
54 |
| 50 |
2.0 |
32 |
| 50 |
3.0 |
32 |
| 50 |
4.0 |
21 |
| 50 |
5.0 |
18 |
| 60 |
0.0 |
225 |
| 60 |
0.2 |
87 |
| 60 |
0.5 |
51 |
| 60 |
1.0 |
34 |
| 60 |
2.0 |
18 |
| 60 |
3.0 |
9 |
| 60 |
4.0 |
8 |
| 60 |
5.0 |
7 |
| 70 |
0.2 |
54 |
| 70 |
0.5 |
24 |
| 70 |
1.0 |
13 |
| 70 |
2.0 |
4 |
Measurement Method: Ac inductive method
"The critical current density... was measured using the AC inductive method... In the AC inductive method, the frequency of the superposed AC magnetic field was 35.0 Hz." No additional measurement details were noted.
Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
Irreversibility Field for Bi:2223; [Bi(Pb)-Sr-Ca-Cu-O]
| Temperature (K) |
Irreversibility Field (T) |
| 85 |
4.0 |
| 88 |
3.0 |
| 92 |
2.0 |
| 96 |
1.0 |
| 100 |
0.5 |
| 104 |
0.2 |
| 108 |
0.0 |
Measurement Method: Four-probe method
"The critical temperature (was)... measured resistively... the irreversibility field was measured in terms of the four probe method... In the irreversibility line measurement, the temperature was increased with application of the transport current of a density of 1.0 x 10
5 A/m
2 under the DC magnetic field, and the irreversibility temperature, T
i(B), was determined by the temperature at which the voltage of 0.1 µV was detected between the voltage terminals of 3 mm. The irreversibility field, B
i(T), is obtained as the inverse relation of the observed irreversibility temperature, T
i(B)."
Cautions: Evaluated Data
Digitized data were obtained from Figure 3 of the paper.
