E Bonetti et al 1991 Supercond. Sci. Technol. 4 S196 doi:10.1088/0953-2048/4/1S/051
E Bonetti, E G Campari, P Cammarota, A Casagrande and S Mantovani
Show affiliationsMeasurements of the dynamic Youngs modulus were performed in polycrystalline YBCO by the vibrating reed technique (102-104 Hz) at different temperatures between 300 and 850 K. An abrupt and strong modulus softening, indicative of a phase transition, occurs with increasing x at about 0.50. Isothermal modulus measurements suggest that the orthogonal phase first transforms into a tetragonal matrix with embedded micro-ortho domains. Successively, first order kinetics yields the tetragonal phase.
74.25.Ld Mechanical and acoustical properties, elasticity, and ultrasonic attenuation
Issue 1S (January 1991)
E Bonetti et al 1991 Supercond. Sci. Technol. 4 S196
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