ISSN 2594-5327
58º Congresso anual — Vol. 58 , num. 1 (2003)
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BaTiO₃ was obtained by cold pressing - solid state reaction method, from commercial, P.A. grade reagents. Several problems were found during fabrication leading to inhomogeneous grain size distribution. The fracture toughness K_IC was evaluated by the indentation fracture method (IF), while the hardness was measured through the Vickers method. Although the dispersion of the results obtained by the IF method was high, a value for K_IC of 0.71 MPa(m)^0.5 was obtained, which is within the expected limits. A hardness value of 4.33 GPa was also found.
BaTiO₃ was obtained by cold pressing - solid state reaction method, from commercial, P.A. grade reagents. Several problems were found during fabrication leading to inhomogeneous grain size distribution. The fracture toughness K_IC was evaluated by the indentation fracture method (IF), while the hardness was measured through the Vickers method. Although the dispersion of the results obtained by the IF method was high, a value for K_IC of 0.71 MPa(m)^0.5 was obtained, which is within the expected limits. A hardness value of 4.33 GPa was also found.
Palavras-chave
Electroceramics, Barium Titanate, Fracture toughness.
Electroceramics, Barium Titanate, Fracture toughness.
Como citar
Meza, Juan Manuel Meza; Valencia, Carlos Alberto Cardenas; Cadavid, Jairo Humberto Marín; Godoy, Marco Antonio Márquez; Roldán, César Augusto Chaves.
PRODUCTION OF BaTiO₃ BY SOLID STATE REACTION AND CHARACTERIZATION OF ITS MECHANICAL PROPERTIES,
p. 2517-2527.
In: 58º Congresso anual,
Rio de Janeiro, Brasil,
2003.
ISSN: 2594-5327, DOI 10.5151/2594-5327-2912
