Sintering simulation of the yttrium oxide with a large number of grains using the phase-field method

Abstract

Computer simulation of the sintering process makes it possible to study the internal properties of the sample, the measurement of which by chemical or physical methods can be difficult and expensive. The interest in studying the properties of yttrium oxide is caused by the fact that it can be used to deactivate sorbents from calcium oxide, which are used to absorb carbon dioxide. The most promising approach to sintering modeling is the phase-field method. However, when using this method, with an increase in the number of grains in the sample, the requirements for computing resources significantly increase. Therefore, when studying the properties of large samples of yttrium oxide, a special approach to the implementation of the phase-field method is necessary. The paper describes an algorithm that allows tracking individual grains to reduce computational effort and shows the possibility of modeling the sintering of samples consisting of 8000 grains.