Artículo
Segregation-induced grain boundary electrical potential in ionic oxide materials: A first principles model
Autor/es | Gómez García, Diego
Meléndez, Juan J. González Romero, Roberto Luis Domínguez Rodríguez, Arturo |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2010 |
Fecha de depósito | 2019-02-07 |
Publicado en |
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Resumen | A first principles continuum analytical model for cationic segregation to the grain boundaries in complex ceramic oxides is presented. The model permits one to determine the electric charge density and the segregation-induced ... A first principles continuum analytical model for cationic segregation to the grain boundaries in complex ceramic oxides is presented. The model permits one to determine the electric charge density and the segregation-induced electric potential profiles through the grain and can be extrapolated to the range of nanostructured grain sizes. The theoretical predictions are compared with existing data for yttria-stabilized tetragonal zirconia polycrystals. The implications for physical properties (mainly high temperature plasticity and hardening behaviour) are then discussed. |
Agencias financiadoras | Gobierno de España |
Identificador del proyecto | MAT2009-14351-C02-01
MAT2009-14351-C02-02 |
Cita | Gómez García, D., Meléndez, J.J., González Romero, R.L. y Domínguez Rodríguez, A. (2010). Segregation-induced grain boundary electrical potential in ionic oxide materials: A first principles model. Acta Materialia, 58, 6404-6410. |
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