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Título: | Development of AlN and TiB2 Composites with Nb2O5, Y2O3 and ZrO2 as Sintering Aids |
Autor: | González, José C.; Rodríguez Barbero, Miguel Ángel CSIC ORCID; Figueroa, Ignacio A.; Villafuerte-Castrejón, María-Elena; Díaz, Gerardo C. | Fecha de publicación: | 22-mar-2017 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Materials 10 (3): 324 (2017) | Resumen: | The synthesis of AlN and TiB<sub>2</sub> by spark plasma sintering (SPS) and the effect of Nb<sub>2</sub>O<sub>5</sub>, Y<sub>2</sub>O<sub>3</sub> and ZrO<sub>2</sub> additions on the mechanical properties and densification of the produced composites is reported and discussed. After the SPS process, dense AlN and TiB<sub>2</sub> composites with Nb<sub>2</sub>O<sub>5</sub>, Y<sub>2</sub>O<sub>3</sub> and ZrO<sub>2</sub> were successfully prepared. X-ray diffraction analysis showed that in the AlN composites, the addition of Nb<sub>2</sub>O<sub>5</sub> gives rise to Nb<sub>4</sub>N<sub>3</sub> during sintering. The compound Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> (YAG) was observed as precipitate in the sample with Y<sub>2</sub>O<sub>3</sub>. X-ray diffraction analysis of the TiB<sub>2</sub> composites showed TiB<sub>2</sub> as a single phase in these materials. The maximum Vickers and toughness values were 14.19 ± 1.43 GPa and 27.52 ± 1.75 GPa for the AlN and TiB<sub>2</sub> composites, respectively. | Versión del editor: | http://doi.org/10.3390/ma10030324 | URI: | http://hdl.handle.net/10261/149358 | DOI: | 10.3390/ma10030324 | Identificadores: | doi: 10.3390/ma10030324 |
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