Stresses in superconductor during oxygenation

The paper deals with an analytical model of stresses acting in the superconductor YBCO during an oxygenation process to transform the tetragonal lattice of the non-superconductive phase YBa2Cu3O7 x0 ðx0 ¼ 0:9Þ to the orthorhombic lattice of the superconductive phase YBa2Cu3O7: Accordingly, the oxygenation-induced stresses originate as a consequence of the difference in dimensions of the crystalline lattices. Additionally, critical temperature of the oxygenation process with regard to a crack formation in the superconductor YBCO is derived.