Experimental method to study grain boundary diffusivity in anisotropic Materials'

NASELLO, OLGA BEATRIZ; C. L. DI PRINZIO; GONZALEZ KREIGEL BERNARDO

SCRIPTA MATERIALIA

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 1995 vol. 33 p. 1889 - 1894

1359-6462

It has been shown that the theoretical treatment developed by Di Prinzio et al. to study the grain boundary diffusivity in anisotropic material can be experimentally implemented. The method was applied to ice bicrystalline samples. The results obtained show that the diffusivity of tilt boundaries 〈101̄0〉/21 ° and 〈101̄0〉/90 ° depends on the grain boundary inclination. As a rule, the authors suggest that when Sun and Bauer´s method is followed to study grain boundary migration b and F(α) may always be determined; it should be kept in mind that, neither values of the Mγ(β) function nor the mean value of Mγ were obtained; instead was found.