Published November 5, 1990
| Version v1
Journal article
Formation mechanism study of REBa2Cu4O8+δ (RE=Y and Dy) accelerated by nitric acid
Creators
- 1. Materials Research Laboratories, Industrial Technology Research Institute, Chutung, Hsinchu, Taiwan (People's Republic of China)
Description
An accelerated formation of REBa2Cu4O8+δ (RE=Y and Dy) was observed as a suitable amount of nitric acid was added. This provides an excellent route for preparing high- purity REBa2Cu4O8+δ in ∼ 30 h. X-ray diffraction and thermal analyses (TGA/DTA) were conducted to reveal the formation mechanism. The addition of nitric acid did not change the reaction routes but formed more Ba2Cu3O5 which might play an important role for the formation of REBa2Cu4O8+δ. Magnetization data confirmed the Tc's of 80 and 75 K for as-prepared Y-124 and Dy-124, respectively
Additional details
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 57
- Journal Issue
- 19
- Series
- Appl. Phys. Lett.
- Journal Page Range
- 2025-2027
- ISSN
- 0003-6951
- CODEN
- APPLA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22042382
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; CHEMICAL REACTION KINETICS; COPPER OXIDES; DYSPROSIUM OXIDES; HIGH-TC SUPERCONDUCTORS; MAGNETIZATION; NITRIC ACID; SINTERING; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; SYNTHESIS; TRANSITION TEMPERATURE; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DYSPROSIUM COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; FABRICATION; FILMS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; REACTION KINETICS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS