Title:
【発明の名称】化合物超電導体およびその製造方法
Document Type and Number:
Japanese Patent JP2542610
Kind Code:
B2
Abstract:
PURPOSE:To obtain a compound superconductor capable of being cooled with inexpensive and readily handleable liquid N2, consisting of Yb and/or Lu, Ba, Cu and O. CONSTITUTION:The compound superconductor of this invention consists of the above-mentioned elements and has the composition ratio of Yb and/or Lu and Ba of 30:70-70:30, preferably 40:60-55/45. The superconductor is produced by the following method. Namely, powder of Yb2O3 and/or Lu2O3 is blended with powder of BaCO3 and powder of CuO in a given ratio. Then the mixture is calcined in air at 800-900 deg.C, ground, cold-pressed and further sintered in air at 800-940 deg.C. Consequently, the aimed compound superconductor of oxide type having a critical temperature Tc higher than liquid N2 temperature (77k) is obtained.
More Like This:
| JPS6450322 | MANUFACTURE OF FOIL SUPERCONDUCTOR |
| JPH01278456 | SUPERCONDUCTOR AND PRODUCTION THEREOF |
| JPS6452658 | PRODUCTION OF OXIDE SUPERCONDUCTING MATERIAL |
Inventors:
FUEKI KAZUO
MURASE AKIRA
YAMADA MINORU
YOSHINO HISASHI
MURASE AKIRA
YAMADA MINORU
YOSHINO HISASHI
Application Number:
JP6328087A
Publication Date:
October 09, 1996
Filing Date:
March 18, 1987
Export Citation:
Assignee:
FUEKI KAZUO
TOSHIBA KK
TOSHIBA KK
International Classes:
H01L39/12; C01G1/00; C01G3/00; H01B12/00; H01B13/00; H01L39/24; (IPC1-7): C01G3/00; C01G1/00; H01B12/00; H01L39/12
Domestic Patent References:
| JP63225531A | ||||
| JP63225599A | ||||
| JP63222067A | ||||
| JP63225527A |
Other References:
【文献】PHYS.REV.LETT.(1987)Vol.58,No.9,PP.908~910
【文献】PHYS.REV.LETT.(1987)Vol.58,No.9,PP.911~912
【文献】PHYS.REV.LETT.(1987)Vol.58,No.9,PP.911~912
Attorney, Agent or Firm:
Takehiko Suzue (2 outside)