The bulk modulus and young's modulus of the superconductor Ba sub 2 Cu sub 3 YO sub 7
- National Bureau of Standards, Gaithersburg, MD (USA)
The isothermal equation of state of the high temperature superconducting ceramic material Ba{sub 2}Cu{sub 3}YO{sub 7} has been determined by measurements in a diamond anvil pressure cell using an energy dispersive x-ray diffraction method. The orthorhombic unit cell lattice parameters (a = 3.8856 {angstrom}, b = 11.6804 {angstrom}, c = 3.8185 {angstrom}) were found to have compressions of (2.0%, 2.3%, 1.1%) respectively over the pressure range from one atmosphere to 10.6 GPa at room temperature. Subsequent equation of state analysis of the approximately linear compression of the volume determined that the isothermal bulk modulus was 196 {plus minus} 17 GPa. Young's modulus was estimated to be 235 {plus minus} 20 GPa assuming that the Poisson's ratio for Ba{sub 2}Cu{sub 3}YO{sub 7} was 0.3 which is typical of many ceramics.
- OSTI ID:
- 5124223
- Report Number(s):
- CONF-8704372-; CODEN: ACEME; TRN: 90-006885
- Journal Information:
- Advanced Ceramic Materials; (USA), Vol. 2:3B; Conference: Ceramic superconductors, Pittsburgh, PA (USA), 26-30 Apr 1987; ISSN 0883-5551
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
LATTICE PARAMETERS
YOUNG MODULUS
COPPER OXIDES
YTTRIUM OXIDES
CERAMICS
CRYSTAL STRUCTURE
EQUATIONS OF STATE
MECHANICAL PROPERTIES
SUPERCONDUCTORS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
DIFFRACTION
EQUATIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360203 - Ceramics
Cermets
& Refractories- Mechanical Properties
656100 - Condensed Matter Physics- Superconductivity