Obtaining Al2O3/Ti/TiO2-Functional Graded Material through Air Oxidation of Al2O3/Ti Composite

Enrique Rocha-Rangel; Jose Rodriguez-Garcia; Sergio J. Esparza-Vazquez; José Guadalupe Miranda Hernández; Elizabeth Refugio-García

doi:10.4028/www.scientific.net/AMR.976.256

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 976Obtaining Al2O3/Ti/TiO2-Functional Graded Material...

Obtaining Al₂O₃/Ti/TiO₂-Functional Graded Material through Air Oxidation of Al₂O₃/Ti Composite

Abstract:

Al₂O₃/Ti/TiO₂-functional materials with compositional gradient were fabricated through air oxidation of Al₂O₃/Ti ceramics. To obtain the desired functional material, the Al₂O₃/Ti ceramic was subjected to a heat treatment for 24 hours at temperatures of 500°C, using an electric furnace with air atmosphere. After ceramic oxidation, observations in the transversal area of the microstructure of the new material obtained show a thin film of about 50 microns thick of a combination of constituents that with the aid of EDS analysis were identified as Al₂O₃/TiO₂. In addition to these observations, microhardness measurements performed on the transversal area of the sample by its surface and towards to the center of this, indicate a surface hardness higher than in the center of the sample, where it was identified by EDS an Al₂O₃/Ti compound. This led to conclude that it was obtained at the end of processing an Al₂O₃/Ti/TiO₂-functional material with compositional gradient.

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Periodical:

Advanced Materials Research (Volume 976)

Pages:

256-259

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.976.256

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Online since:

June 2014

Authors:

Enrique Rocha-Rangel*, Jose Rodriguez-Garcia, Sergio J. Esparza-Vazquez, José Guadalupe Miranda Hernández, Elizabeth Refugio-García

Keywords:

Al₂O₃/Ti, Compositional Gradient, Functional Materials

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