Chicardi Augusto, ErnestoTorres Hernández, YadirCórdoba Gallego, José ManuelHvizdos, P.Gotor Martínez, Francisco José2018-02-022018-02-022014Chicardi Augusto, E., Torres Hernández, Y., Córdoba Gallego, J.M., Hvizdos, P. y Gotor Martínez, F.J. (2014). Effect of tantalum content on the microstructure and mechanical behavior of cermets based on (TixTa1-x)(C0.5N0.5) solid solutions. Materials and Design, 53, 435-444.0261-3069 (impreso)0264-1275 (electrónico)https://hdl.handle.net/11441/69932Titanium-tantalum carbonitride, (Ti, Ta)(C, N), based cermets with different Ti and Ta contents were prepared using a mechanically induced self-sustaining reaction and then densified using a pressureless sintering process. Complete microstructural and mechanical characterizations were performed on the materials, which revealed that the size of the carbonitride ceramic particle was significantly reduced when the Ta content was increased. The flexural strength and fracture toughness were measured using the ball on three balls test and the indentation microfracture test, respectively. The strength profile was analyzed under the framework of Weibull theory. The change in the mechanical properties as a function of the Ta content was correlated with the normalized microstructural parameters, such as the binder mean free path. The decrease in toughness and flexural strength was attributed to the presence of intermetallic compounds in the binder phase, which was also corroborated by the nanoindentation tests.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Mechanical propertiesMechanical testingPowder processingCeramic-matrix compositesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1016/j.matdes.2013.07.039