Texture hardening in PIT method and its effect on texture formation during annealing

In present study the influence of several factors on the texture of Bi-based superconductor prepared by powder in tube (PIT) method has been studied. The grain growth of 2212 and 2223 phases during the heat-treatment process leads to obvious improvement of their texture degrees. The texture of mother phase 2212 is well beneficial to improving these texture degrees. These results are analyzed based on the mechanism of the minimum interface energy texture formation that was raised in the early works.