Anisotropy of Transport Properties Correlated to Grain Boundary Density and Quantified Texture in Thick Oriented Ca3Co4O9 Ceramics

Sensitivity of Texture Development during Grain Growth to Anisotropy of Grain Boundary Properties

Texture Development Dependence on Grain Boundary Properties

The motivation for this work is to explain the development of special textures during recrystallization such as the cube component, {001}<100> in fcc metals. Monte Carlo simulation is used with two different mobility and energy functions. The energy function has little influence on texture development whereas the mobility function has a strong influence. A mobility function with a single broad ...

Grain boundary segregation in oxide ceramics

D PR O Abstract The factors which control grain boundary segregation in oxide ceramics are reviewed. These include grain boundary energy, cation–cation interactions, impurity cation size, as well as electrostatic interactions with the grain boundary space charge. In addition, an approach for measuring grain boundary segregation in those materials, as a function of the five macroscopic parameter...

Effect of texture and grain shape on anisotropy

An attempt is made to summarize the different ways of modelling the anisotropy of a polycrystalline material. At the single crystal level, the formulation based on Schmid law or viscoplasticity shows clearly the microscopic anisotropy due to the hardening and the orientation changes. It is also shown how viscoplasticity leads to a unique slip system activity irrespectively of the rate sensitivi...

Aes/stem Grain Boundary Analysis of Stabilized Zirconia Ceramics

A~~act-Semi~uantitative Auger Electron Spectroscopy (AES) on pure monophasic (Z~*)~.~(YO,.~~,,, was used to determine the chemical composition of the grain boundaries. Grain boundary enrichment with Y was observed with an enrichment factor of about 1.5. The difference in activation energy of the ionic conductivity of the grain boundary compared with the bulk can be explained by the Y segregatio...