Orthorhombic to tetragonal phase transition in Y1Ba2Cu3O7− x
1988; American Institute of Physics; Volume: 63; Issue: 12 Linguagem: Inglês
10.1063/1.340319
ISSN1520-8850
AutoresAkhilesh Kumar Singh, L.E. Richards, H. A. Hoff, V. Letourneau, C. S. Pände,
Tópico(s)High-pressure geophysics and materials
ResumoQuenching experiments were performed to study the orthorhombic to tetragonal phase transition in Y1Ba2Cu3O7−x. The quenched and unquenched specimens were characterized by x-ray diffraction and optical microscopy. The phase transition temperature was found to be dependent on the environment of the sealed specimens during quenching, and could be as high as 1173 K (900 °C). The phase transition is suggested to be of second order.
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