Elastic modulus and hardness of CaTiO3, CaCu3Ti4O12 and CaTiO3/CaCu3Ti4O12 mixture

Ramírez, M. A.; Parra, Rodrigo; Reboredo, Maria Marta; Varela, J. A.; Castro, Miriam Susana; Ramajo, Leandro Alfredo

Artículos de revistas

Fecha

2010-03-03

Registro en:

Ramírez, M. A.; Parra, Rodrigo; Reboredo, Maria Marta; Varela, J. A.; Castro, Miriam Susana; et al.; Elastic modulus and hardness of CaTiO3, CaCu3Ti4O12 and CaTiO3/CaCu3Ti4O12 mixture; Elsevier Science; Materials Letters; 64; 10; 3-3-2010; 1226-1228

0167-577X

http://hdl.handle.net/11336/16346

http://repositorioslatinoamericanos.uchile.cl/handle/2250/1905607

Autor

Ramírez, M. A.

Parra, Rodrigo

Reboredo, Maria Marta

Varela, J. A.

Castro, Miriam Susana

Ramajo, Leandro Alfredo

Institución

Consejo Nacional de Investigaciones Científicas y Tecnológicas (Argentina)

Resumen

Three ceramic systems, CaTiO3 (CTO), CaCu3Ti4O12 (CCTO) and intermediate nonstoichiometric CaTiO3/CaCu3Ti4O12 mixtures (CTO.CCTO), were investigated and characterized. The ceramics were sintered at 1100 °C for 180 min. The surface morphology and structures were investigated by XRD and SEM. Elastic modulus and hardness of the surfaces were studied by instrumented indentation. It was observed that CCTO presented the higher mechanical properties (E = 256 GPa, hardness = 10.6 GPa), while CTO/CCTO mixture showed intermediate properties between CTO and CCTO.

Materias

CaTiO3

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