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: Thermal Conductivity of Bi-2212 Single Crystals Prepared by TSFZ Method
Author(s): H. Fujishiro, M. Ikebe, T. Naito, M. Matsukawa, K. Noto, I. Shigaki, K. Shibutani, S. Hayashi, and R. Ogawa
Publication: Physica C Volume: 235 Issue: Not Available Year: 1994 Page(s): 1533-1534
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Vol. 235-240, multivolume issue
Keywords: Material Specification, Critical Temperature, Thermal Conductivity

Materials and Properties

Bi:2212; [Bi-Sr-Ca-Cu-O]
Material Specification for Bi:2212; [Bi-Sr-Ca-Cu-O] Process: Floating Zone
Notes: "In this paper, we report the in-plane thermal conductivity... of the Bi-2212 single crystal grown by TSFZ (traveling solvent floating zone) method... The measured sample has the composition of Bi2.24Sr1.80Ca0.98Cu1.94O8.27 with laminar structure consisting of several thin single crystals parallel to the ab-plane. The as-grown sample... has a size of 3.3x1.1x11.0 mm3 in which the 3.3x11.0 mm2 plane is an ab-plane. This as-grown sample was heat treated at 600 °C for 5 h in vacuum... and subsequently heat treated at 650 °C for 100 h in oxygen atmosphere."
Formula: Bi2.24Sr1.80Ca0.98Cu1.94O8.27
Informal Name: Bi:2212
Chemical Family: Bi-Sr-Ca-Cu-O
Chemical Class: Oxide
Structure Type: Single Crystal
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Critical Temperature for Bi:2212; [Bi-Sr-Ca-Cu-O]
Critical Temperature (K)
82
Measurement Method: Electrical resistance

Cautions: Unevaluated Data
No measurement details were noted.
Thermal Conductivity for Bi:2212; [Bi-Sr-Ca-Cu-O]
Sample Condition () Temperature (K) Thermal Conductivity (W m-1 K-1)
as grown 16 1.27
as grown 35 1.64
as grown 53 1.84
as grown 65 1.89
as grown 72 1.81
as grown 79 1.90
as grown 84 1.86
as grown 96 1.98
as grown 111 2.14
as grown 121 2.31
as grown 131 2.51
as grown 142 2.56
as grown 149 2.64
as grown 155 2.56
oxidized 17 1.63
oxidized 33 2.15
oxidized 49 2.36
oxidized 60 2.40
oxidized 75 2.37
oxidized 87 2.29
oxidized 100 2.38
oxidized 112 2.38
oxidized 121 2.43
oxidized 131 2.51
oxidized 145 2.64
oxidized 164 2.76
oxidized 179 2.89
oxidized 195 2.98
Measurement Method: Steady state heat flow
The authors cite N. Hobara et al., Cryo. Eng., Vol. 28, 688 (1993), and summarize the procedure as follows. "The thermal conductivity was measured by a steady state heat flow method." No additonal measurement details were noted.

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