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      Development of AlN and TiB 2 Composites with Nb 2O 5, Y 2O 3 and ZrO 2 as Sintering Aids

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          Abstract

          The synthesis of AlN and TiB 2 by spark plasma sintering (SPS) and the effect of Nb 2O 5, Y 2O 3 and ZrO 2 additions on the mechanical properties and densification of the produced composites is reported and discussed. After the SPS process, dense AlN and TiB 2 composites with Nb 2O 5, Y 2O 3 and ZrO 2 were successfully prepared. X-ray diffraction analysis showed that in the AlN composites, the addition of Nb 2O 5 gives rise to Nb 4N 3 during sintering. The compound Y 3Al 5O 12 (YAG) was observed as precipitate in the sample with Y 2O 3. X-ray diffraction analysis of the TiB 2 composites showed TiB 2 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 2 composites, respectively.

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          Processing and properties of monolithic TiB2based materials

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            Synthesis and consolidation of titanium diboride

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              Sintering and mechanical properties of titanium diboride with aluminum nitride as a sintering aid

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                Author and article information

                Contributors
                Role: Academic Editor
                Journal
                Materials (Basel)
                Materials (Basel)
                materials
                Materials
                MDPI
                1996-1944
                22 March 2017
                March 2017
                : 10
                : 3
                : 324
                Affiliations
                [1 ]Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico 14418, Mesa de Otay, Tijuana 22390, Mexico; diazg@ 123456uabc.edu.mx
                [2 ]Instituto de Cerámica y Vidrio, CSIC, C/Kelsen 5, Campus de Cantoblanco, 28049 Madrid, Spain; mar@ 123456icv.csic.es
                [3 ]Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, A.P. 70-360, Ciudad de México 04510, Mexico; iafigueroa@ 123456unam.mx (I.A.F.); mevc@ 123456unam.mx (M.-E.V.-C.)
                Author notes
                [* ]Correspondence: constantino.gonzalez@ 123456uabc.edu.mx ; Tel.: +52-664-979-7500
                Article
                materials-10-00324
                10.3390/ma10030324
                5503357
                f88bd269-f2ed-44dc-a890-21d2f2ee1ea7
                © 2017 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 19 December 2016
                : 13 March 2017
                Categories
                Article

                park plasma sintering,composites,mechanical properties

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