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Fabrication and properties of HfB2–MoSi2 composites produced by hot pressing and spark plasma sintering

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Abstract

HfB2–15 vol% MoSi2 composites were produced from powder mixtures and densified through different techniques, namely hot pressing and spark plasma sintering. Dense materials were obtained at 1900 °C by hot pressing and at 1750 °C by spark plasma sintering. Microstructure and mechanical properties were compared. The most relevant result was for high-temperature strength: independent of the processing technique, the flexural strength in air at 1500 °C was higher than 500 MPa.

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Authors and Affiliations

  1. Institute of Science and Technology for Ceramics, CNR-ISTEC, I-48018, Faenza, Italy

    Diletta Sciti, Laura Silvestroni & Alida Bellosi

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  1. Diletta Sciti
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  2. Laura Silvestroni
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  3. Alida Bellosi
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Correspondence to Diletta Sciti.

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Sciti, D., Silvestroni, L. & Bellosi, A. Fabrication and properties of HfB2–MoSi2 composites produced by hot pressing and spark plasma sintering. Journal of Materials Research 21, 1460–1466 (2006). https://doi.org/10.1557/jmr.2006.0180

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  • DOI: https://doi.org/10.1557/jmr.2006.0180

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