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NIST High Temp. Superconducting Materials (HTS) Database:

NIST Standard Reference Database 62

Last Update to Data Content: 1996

DOI: https://doi.org/10.18434/T4KP8J

Bibliographic Information

Title: 115 K Superconductivity of Bi(Pb/Sb)-Sr-Ca-Cu-O Thick Films
Author(s): A. Rojek, G. Wasilewska, A. Bohdziewicz, B. Cendlewska, and E. Trojnar
Publication: Physica C Volume: 183 Issue: Not Available Year: 1991 Page(s): 130-134
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Resistance (normal state)

Materials and Properties

Bi:2223; [Bi(Pb)-Sr-Ca(Sb)-Cu-O]
Material Specification for Bi:2223; [Bi(Pb)-Sr-Ca(Sb)-Cu-O] Process: Melt Processed
Notes: "The starting materials (analytical grade): Bi2O3, SrCO3, CaCO3, CuO, PbO and Sb2O5 were weighted and mixed thoroughly by ball milling using acetone as a medium. The mixture was deposited on a monocrystalline (100) MgO substrate (10 x 5 x 0.5 mm3) and melted in air at temperatures from 890 °C to 920 °C for several minutes. The resulting film was amorphous after the melting process." Samples were annealed for various times.
Formula: Bi1.6PbxSbySr2Ca2Cu3Oz
Informal Name: Bi:2223
Chemical Family: Bi(Pb)-Sr-Ca(Sb)-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form: Thick Film
Critical Temperature for Bi:2223; [Bi(Pb)-Sr-Ca(Sb)-Cu-O]
x of Pbx (formula units) y of Sby (formula units) Annealing Temperature (°C) Annealing Time (h) Critical Temperature (K)
0.3 0 840 1 70
0.3 0 840 19 70
0.3 0 840 65 82
0.3 0 840 100 85
0.6 0 840 3 72
0.6 0 840 20 72
0.6 0 840 24 84
0.6 0 840 65 102
0.6 0 840 100 102
0.6 0.1 855 5 78
0.6 0.1 855 17 103
0.6 0.1 855 40 106
0.6 0.1 855 66 107
0.6 0.1 855 76 115
0.6 0.1 855 100 115
Measurement Method: Four-probe method
"The electrical resistance was measured by standard four probe-DC technique in a cryostat. The resistance curves were obtained with a current of 100 µA, which correspond to a current density less than 0.025 A/cm2. The electrical contacts were attached to the surface of the films using a silver paste."

Cautions: Evaluated Data
Digitized data were obtained from Figure 4 of the paper.
Resistance (normal state) for Bi:2223; [Bi(Pb)-Sr-Ca(Sb)-Cu-O]
Anneal Time at 840°C (h) Temperature (K) Resistance (normal state) (mΩ)
1.5 65 22
1.5 75 2971
1.5 80 3729
1.5 89 3845
1.5 119 3872
1.5 180 3661
1.5 250 3362
1.5 291 3300
18 69 22
18 77 956
18 81 1247
18 94 1450
18 129 1681
18 199 2024
18 288 2483
60 85 8
60 86 443
60 89 877
60 93 1021
60 111 1162
60 149 1414
60 219 1716
60 290 1988
Measurement Method: Four-probe method
"The electrical resistance was measured by standard four probe-DC technique in a cryostat. The resistance curves were obtained with a current of 100 µA, which correspond to a current density less than 0.025 A/cm2. The electrical contacts were attached to the surface of the films using a silver paste."

Cautions: Evaluated Data
Digitized data were obtained from Figure 1 of the paper.