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Issue 4, 2002
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Synthesis of (Ca,Mg)-α-sialon from slag by self-propagating high-temperature synthesis

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Abstract

The synthesis of (Ca,Mg)-α-sialon powders using slag as a starting material by self-propagating high-temperature synthesis (SHS) is reported for the first time. The only crystalline phase detected in the synthesized products was α-sialon. The characters of the synthesized powders were observed and compared with that of conventionally hot-pressed materials. More metal cations were absorbed into the α-sialon structure of the SHS synthesized powders. Fully densified sialon ceramics can be obtained using the SHS powders by hot-pressing. The hardness and fracture toughness of the hot-pressed α-sialon ceramics reached 16 GPa and 5.1 MPa m−1/2 respectively.

Graphical abstract: Synthesis of (Ca,Mg)-α-sialon from slag by self-propagating high-temperature synthesis

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Publication details

The article was received on 15 Jan 2002, accepted on 13 Feb 2002 and first published on 01 Mar 2002


Article type: Paper
DOI: 10.1039/B200540A
Citation: J. Mater. Chem., 2002,12, 1199-1202
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    Synthesis of (Ca,Mg)-α-sialon from slag by self-propagating high-temperature synthesis

    W. Chen, P. Wang, D. Chen, B. Zhang, J. Jiang, Y. Cheng and D. Yan, J. Mater. Chem., 2002, 12, 1199
    DOI: 10.1039/B200540A

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