La. Bashkirov et al., Ba-Sr and Ni-Co solid-state interdiffusion in the hexagonal ferrites Ba2M2Fe12O22 and Sr2M2Fe12O22 (M = Ni2+, Co2+), INORG MATER, 37(7), 2001, pp. 737-743
The Ni, Co, Ba, and Sr profiles in the diffusion zones produced between hex
agonal Y-ferrites (Ba2Co2Fe12O22-Ba2Ni2Fe12O22, Sr2Ni2Fe12O22-Sr2Co2Fe12O22
, Sr2Co2Fe12O22-Ba2Co2Fe12O22, Sr2Ni2Fe12O22- Ba2Ni2Fe12O22, Ba2Co2Fe12O22-
Sr2Ni2Fe12O22, and Sr2Co2Fe12O22-Ba2Ni2Fe12O22) by annealing at 1470 K were
used to evaluate the interdiffusion coefficients of the cations involved b
y the Boltzmann-Matano method over the whole composition range.