文档介绍：Diffusivity in the Nb-Al binary solid solution 
Binary diffusion in the Nb-Al . solid solution was studied in the temperature range 1350–1550 °C using the diffusion couple technique. The interdiffusion coefficient values varied linearly position in position range 1–3 at.% Al and showed Arrhenius behavior as a function of temperature. The average activation energy was determined to be 80 kcal mol−1 with a frequency factor of 11 × 10−2 cm2 s−1.
Journal of Alloys pounds, Volume 202, Issues 1-2, 10 December 1993, Pages 117-123
J. G. L. Ruiz-Aparicio and F. Ebrahimi
Thermodynamic data from diffusion couples—I  • ARTICLE
Acta Metallurgica et Materialia, Volume 38, Issue 12, December 1990, Pages 2741-2753
R. R. Kapoor and T. W. Eagar
Mechanism of Ni---Zn ferrite formation  • ARTICLE
Journal of Solid State Chemistry, Volume 39, Issue 3, October 1981, Pages 298-308
V. V. Pan'kov and L. A. Bashkirov
Abstract
The regularities in the change of character of the ferrite formation process as a function of Ni1−xZnxFe2O4 solid solution and of the degree of zinc oxide saturation of the Ni1−xZnxO solid solution (x = ; ; ) are established in the temperature range 1220–1305°C. It is shown that in the reaction zone of interacting NiO, (Ni, ZnO), or ZnO with Fe2O3 the ferrite phase crystallizes only on iron oxide. The di