The bulk modulus and young's modulus of the superconductor Ba sub 2 Cu sub 3 YO sub 7

Conference · Wed Jul 01 04:00:00 EDT 1987 · Advanced Ceramic Materials; (USA)

OSTI ID:5124223

Block, S; Piermarini, G J; Munro, R G; Wong-Ng, W ^[1]

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1. 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--
• Conference Information: Journal Name: Advanced Ceramic Materials; (USA) Journal Volume: 2:3B
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CERAMICS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DIFFRACTION
EQUATIONS
EQUATIONS OF STATE
LATTICE PARAMETERS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YOUNG MODULUS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES