Grain Boundary Diffusion in Polycrystalline Ferrites with Different Intergranular Potential Barrier |
| |
Authors: | Surzhikov A P Ghyngazov S A Lysenko E N Frangylyan T S |
| |
Institution: | (1) Tomsk Polytechnic University, pr. Lenina, 30, Tomsk, Russia, 634050; |
| |
Abstract: | Using the method of layer-by-layer measurements of the electrical conductivity activation energy, an investigation is performed of grain-boundary diffusion of oxygen in polycrystalline Li–Ti-ferrites in the range of temperatures 873–1073 K. A correlation relation is established between the value of the intergranular potential barrier and the parameters of grain-boundary diffusion of oxygen in polycrystalline ferrites. An increase in this value gives rise to a growth in the diffusion activation energy. The grain-boundary diffusion coefficient increases with the value of the intergranular potential barrier. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|