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Effect of mechanically activated raw materials on β-sialon formation by combustion synthesis

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Abstract

The influence of different raw material mixtures on β-sialon (Si6−zAlzOzN8−z, 1 ⩽ z ⩽ 4) formation through mechanical activation coupled combustion synthesis (MA-CS) was investigated in low nitriding atmosphere of 1 MPa without diluent inclusions. The MA-CS performed for the first time on sialon raw materials with milling time of 18 min obtained sialons more than three times as pure as those obtained by CS of mixtures ball milled to 1 h (z = 3). The starting materials containing silicon, aluminum, and alumina (z = 4) after MA-CS had an increment of sialon amounts up to 88 mass%.

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Authors and Affiliations

  1. Center for Advanced Research of Energy Conversion Materials, Hokkaido University, Sapporo, 060-8628, Japan

    Ramasamy Sivakumar, Kazuhiko Aoyagi & Tomohiro Akiyama

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  1. Ramasamy Sivakumar
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  2. Kazuhiko Aoyagi
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  3. Tomohiro Akiyama
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Correspondence to Ramasamy Sivakumar.

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Sivakumar, R., Aoyagi, K. & Akiyama, T. Effect of mechanically activated raw materials on β-sialon formation by combustion synthesis. Journal of Materials Research 22, 2863–2867 (2007). https://doi.org/10.1557/JMR.2007.0338

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  • DOI: https://doi.org/10.1557/JMR.2007.0338

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