Effect of CeO2 Modified MAS Middle Layer on the Joint of C/C-LAS

doi:10.3724/SP.J.1077.2013.13051

Abstract

Abstract: The joints between C/C composites and lithium aluminosilicate (LAS) glass ceramic were prepared by hot pressing process method using magnesium aluminosilicate glass caremic (MAS) modified by rare earth oxide (CeO₂) as an intermediate layer. Morphology and ingredients of the MAS middlelayer and joints were analyzed by SEM and EDS. Shear strength of joints was examined through the INSTRON universal testing tensile machine. The results show that MAS middle layer surface is denser with less defects than with the middle layer without CeO₂. The thickness of MAS middlelayer modified by CeO₂ is about 150 μm, which of MAS middlelayer without CeO₂ is about 50 μm. The average shear strength of joints modified by CeO₂ is 25.37 MPa, which is 30% higher than that of the joints without CeO₂.

Key words: C/C composites, MAS glass ceramic, CeO₂, joint

CLC Number:

TB332

ZHU Huan-Xia, LI Ke-Zhi, LU Jin-Hua, LI He-Jun, WANG Jian-Yang. Effect of CeO₂ Modified MAS Middle Layer on the Joint of C/C-LAS[J]. Journal of Inorganic Materials, 2013, 28(12): 1345-1348.

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Effect of CeO₂ Modified MAS Middle Layer on the Joint of C/C-LAS

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