INVESTIGADORES
RAMAJO leandro Alfredo
artículos
Título:
Elastic Modulus and Hardness of CaTiO3, CaCu3Ti4O12 and CaTiO3/CaCu3Ti4O12
Autor/es:
MIGUEL RAMÍREZ; RODRIGO PARRA; MARIA MARTA REBOREDO; JOSÉ ARANA VARELA; MIRIAM SUSANA CASTRO; LEANDRO ALFREDO RAMAJO
Revista:
MATERIALS LETTERS
Editorial:
Elservier Ltd.
Referencias:
Año: 2010 vol. 64 p. 1226 - 1228
ISSN:
0167-577X
Resumen:
Three ceramic systems, CaTiO3 (CTO), CaCu3Ti4O12 (CCTO) and intermediate nonstoichiometric CaTiO3/CaCu3Ti4O12 (CTO.CCTO), were investigated and characterized. The ceramics were sintered at 1100ºC for 180min. 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 showed intermediate properties between CTO and CCTO.
