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Pressureless Sintering of TiB2-B4C Ceramic Matrix Composite

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Abstract

The effect of TiB2 addition on sinterability and mechanical properties of B4C material was investigated. It was found that addition of TiB2 aids the sintering process and permits pressureless sintering at temperatures between 2050 and 2150 °C. This also alleviates grain growth during sintering. The relative density reaches 98.5% of the theoretical density by increasing the percentage of TiB2 in the composition. The mechanical properties such as hardness, fracture toughness, and bending strength were improved remarkably by addition of TiB2.

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Acknowledgment

The authors would like to thank University of Malek Ashtar and University of Tehran for supporting the present project.

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Authors and Affiliations

  1. Department of Metallurgy and Materials, Faculty of Engineering, University of Tehran, Tehran, Iran

    H.R. Baharvandi

  2. University of Malek Ashtar, Tehran, Iran

    A.M. Hadian

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  1. H.R. Baharvandi
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  2. A.M. Hadian
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Correspondence to H.R. Baharvandi.

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Baharvandi, H., Hadian, A. Pressureless Sintering of TiB2-B4C Ceramic Matrix Composite. J. of Materi Eng and Perform 17, 838–841 (2008). https://doi.org/10.1007/s11665-007-9182-4

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  • DOI: https://doi.org/10.1007/s11665-007-9182-4

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