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Preparation and characterization of Al/AlN composites sintered under high pressure

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Abstract

High-density aluminium/aluminium nitride (Al/AlN) composites were obtained by high pressure sintering method under 3.0–5.5 GPa and 860–1,690 °C for only 20–70 min. The results show that the relative density of Al/AlN composite containing 40 wt.% Al can reach 99.37% under 5.0 GPa and 1,600 °C for only 20 min. This sintering time is quite shorter than conventional methods (1–6 h). The fracture surfaces show homogeneous microstructure and transcrystalline fractures are easy to find.

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Acknowledgement

This work is supported by the National Nature Science Foundation of China: 50572032.

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Correspondence to X. Jia.

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Lee, J.G., Ma, H.A., Lee, X.L. et al. Preparation and characterization of Al/AlN composites sintered under high pressure. J Mater Sci 42, 9460–9464 (2007). https://doi.org/10.1007/s10853-007-1934-x

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  • DOI: https://doi.org/10.1007/s10853-007-1934-x

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