Material Specification for Bi:2212; [Bi-Sr-Ca-Cu-O]
Process: Solid State Reaction
Notes: The authors cite J. Jung et al., Physica C, Vol. 156, 494 (1988), and summarize the procedure as follows. "The whiskers of the 2223 material were grown... in two main steps. First, powders of Bi2O3 (99.95%), SrCO3 (98%), CaCO3 (99+%), CuO and PbO (99.9+%) as starting materials were mixed with the nominal composition of Bi2Sr1.9Ca2.2Cu4Pb0.5Ox in a mortar and pestle. The mixed powder was melted in air at 1200 °C for 40 min. The melt was poured onto a steel plate and pressed quickly. Second, this glassy material was put in several alumina boats and heated at 810-860 °C for five days with O2 gas flowing through leading to recrystallization. Then they were cooled to room temperature at a rate of 2.5 °C/min in the furnace in a stream of O2."
Formula: Bi2Sr2CaCu2Ox
Informal Name: Bi:2212
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:
Elastic Modulus for Bi:2212; [Bi-Sr-Ca-Cu-O]
| Temperature (K) |
Elastic Modulus (GPa) |
| 270 |
20 ± 5 |
Measurement Method: Stress-strain apparatus
The authors cite M.J. Skove et al., Rev. Sci. Instr., Vol. 62, 1010 (1991), and summarize the procedure as follows. "Young's modulus is given by the slop of a stress-strain curve... Our device allows static, uniform stress to be applied in a smooth, reversible manner while the displacement of the end of the sample is measured. One end of the sample is attached to a movable rod suspended by leaf springs and the other end is held fixed. Force is applied to the sample via a coaxial electro-magnet acting on permanent magnets attached to a movable rod and displacements are measured capacitively."
Cautions: Evaluated Data
Material Specification for Bi:2223; [Bi(Pb)-Sr-Ca-Cu-O]
Process: Solid State Reaction
Notes: The authors cite J. Jung et al., Physica C, Vol. 156, 494 (1988), and summarize the procedure as follows. "The whiskers of the 2223 material were grown... in two main steps. First, powders of Bi2O3 (99.95%), SrCO3 (98%), CaCO3 (99+%), CuO and PbO (99.9+%) as starting materials were mixed with the nominal composition of Bi2Sr1.9Ca2.2Cu4Pb0.5Ox in a mortar and pestle. The mixed powder was melted in air at 1200 °C for 40 min. The melt was poured onto a steel plate and pressed quickly. Second, this glassy material was put in several alumina boats and heated at 810-860 °C for five days with O2 gas flowing through leading to recrystallization. Then they were cooled to room temperature at a rate of 2.5 °C/min in the furnace in a stream of O2."
Formula: Bi2-xPbxSr2Ca2Cu3Oy
Informal Name: Bi:2223
Chemical Family: Bi(Pb)-Sr-Ca-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Elastic Modulus for Bi:2223; [Bi(Pb)-Sr-Ca-Cu-O]
| Temperature (K) |
Elastic Modulus (GPa) |
| 300 |
25 ± 5 |
Measurement Method: Stress-strain apparatus
The authors cite M.J. Skove et al., Rev. Sci. Instr., Vol. 62, 1010 (1991), and summarize the procedure as follows. "Young's modulus is given by the slop of a stress-strain curve... Our device allows static, uniform stress to be applied in a smooth, reversible manner while the displacement of the end of the sample is measured. One end of the sample is attached to a movable rod suspended by leaf springs and the other end is held fixed. Force is applied to the sample via a coaxial electro-magnet acting on permanent magnets attached to a movable rod and displacements are measured capacitively."
Cautions: Evaluated Data
