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: Variation of Tc in Single Phase Bi4Sr3Ca3Cu4O16-x System
Author(s): M. N. Khan and F. A. Khwaja
Publication: Modern Physics Letters B Volume: 4 Issue: 22 Year: 1990 Page(s): 1385-1391
Editor(s): Not Available
Publisher: World Scientific Publishing Company
Language: English
Notes: Not Available
Keywords: Material Specification, Crystallography, Critical Temperature

Materials and Properties

Bi:4334; [Bi-Sr-Ca-Cu-O]
Material Specification for Bi:4334; [Bi-Sr-Ca-Cu-O] Process: Solid State Reaction
Notes: "The samples... were prepared by solid state reaction in air using 99.999% pure powders of Bi2O3, SrCO3, CaCu3, and CuO. These powders were ground and mixed together in appropriate anion proportions to yield the desired stoichiometry of the reacting compounds. The samples were calcinated at 800 °C for 12 h in a furnace and subsequently cooled to room temperature in about 4-5 h. The resultant were again ground and pressed into a die of 1.5 cm under hydraulic press. All the samples were sintered at 870 ± 5 °C for 12 h and then cooled..."
Formula: Bi4Sr3Ca3Cu4O16-x
Informal Name: Bi:4334
Chemical Family: Bi-Sr-Ca-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Bi:4334; [Bi-Sr-Ca-Cu-O]
Crystal System: Tetragonal
Formula Units per Cell:
Space Group:
Cell Parameters
Cooling Environment () Temp K a Å b Å c Å
furnace 296 3.812 3.812 30.396
air 296 3.778 3.778 30.586
ice 296 3.771 3.771 30.738
Measurement Method: X-ray diffraction
"The phase identification of the pellets was carried out with a computer-controlled X-ray diffractometer JDX-11P3A for M/s Jeol using CuKα radiation, monochromated using graphite monochromator."

Cautions: Evaluated Data
Critical Temperature for Bi:4334; [Bi-Sr-Ca-Cu-O]
Cooling Environment () Critical Temperature (K)
furnace 120
air 101
ice 98
Measurement Method: Four-probe method
"... values of Tc were obtained from resistance measurements using the standard four-probe method and from dc susceptibility measurements using a commercial vibrating sample magnetometer model BHV 50..."

Cautions: Evaluated Data
The reported values are for Tc(onset).