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Phase Relations in the Si-Al-Nd-O-C System

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An Erratum to this article was published on 19 September 2016

Abstract

Present work determined the phase relations of the SiC-Al2O3-Nd2O3, SiC-Nd2O3-SiO2 and SiC-Al2O3-Nd2O3-SiO2 subsystems in the Si-Al-Nd-O-C system by XRD phase analysis of samples which were prepared via the solid-state reaction using SiC, Al2O3, Nd2O3 and SiO2 as the starting materials. The phase diagrams of the subsystems were presented. SiC was compatible with each of the two Nd-aluminates of NdAlO3 and NdAl11O18 in the system. Nd4Al2O9 was stable at temperatures >1720 °C and compatible with SiC. Six four-phase coexistent regions were established in the quaternary SiC-Al2O3-Nd2O3-SiO2 system at 1250 °C. Possible effects of the SiO2 on sintering of the SiC ceramics were discussed.

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Acknowledgments

The present work was financially supported by National Natural Science Foundation of China, under grant numbers of NSFC51362001 and NSFC 51272053.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Beifang University of Nationalities, Yinchuan, 750021, Ningxia, People’s Republic of China

    Yun Ma, Laner Wu, Yong Jiang, Zhenkun Huang & Limeng Liu

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  1. Yun Ma
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  2. Laner Wu
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  3. Yong Jiang
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  4. Zhenkun Huang
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  5. Limeng Liu
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Corresponding author

Correspondence to Laner Wu.

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An erratum to this article can be found at http://dx.doi.org/10.1007/s11669-016-0498-3.

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Ma, Y., Wu, L., Jiang, Y. et al. Phase Relations in the Si-Al-Nd-O-C System. J. Phase Equilib. Diffus. 37, 532–539 (2016). https://doi.org/10.1007/s11669-016-0468-9

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  • DOI: https://doi.org/10.1007/s11669-016-0468-9

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