<trans-title xml:lang="en">Oxidation Behavior of Yb2Si2O7 Modified SiC/SiC Mini-composites </trans-title>

Shuang MU; Qin MA; Yu ZHANG; Xu SHEN; Jinshan YANG; Shaoming DONG

doi:10.15541/jim20240148

Journal of Inorganic Materials, Volume. 40, Issue 3, 323(2025)

Oxidation Behavior of Yb₂Si₂O₇ Modified SiC/SiC Mini-composites

Shuang MU^1,2, Qin MA^1,2, Yu ZHANG^1,2, Xu SHEN^1,2, Jinshan YANG^1,2、*, and Shaoming DONG^1,2、*

¹1. State Key Laboratory of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

²2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(7)

1. Schematic diagram of preparation of Yb₂Si₂O₇ modified SiC/SiC mini-composites

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2. SEM images of cross-sections of (a, b) coated fibers, (c, e) SiC/SiC, and (d, f) SiC/SiC-Yb₂Si₂O₇ mini-composites

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3. Tensile force-displacement curves of (a) SiC/SiC and (b) SiC/SiC-Yb₂Si₂O₇ mini-composites

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4. Fracture morphologies of (a, b) SiC/SiC and (c, d) SiC/SiC-Yb₂Si₂O₇ mini-composites

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5. Weight change of SiC/SiC and SiC/SiC-Yb₂Si₂O₇ mini-composites during oxidation at 1200 and 1400 ℃ for 50 h with inset showing the weight change during oxidation at 1200 ℃ for 80 h

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$Tensile fracture morphologies of (a, c, e) SiC/SiC, and (b, d, f) SiC/SiC-Yb2Si2O7 mini-composites after oxidation at (a-d) 1200 ℃ with EDS results (table at the bottom), and (e, f) at 1400 ℃, respectively$

6. Tensile fracture morphologies of (a, c, e) SiC/SiC, and (b, d, f) SiC/SiC-Yb₂Si₂O₇ mini-composites after oxidation at (a-d) 1200 ℃ with EDS results (table at the bottom), and (e, f) at 1400 ℃, respectively

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Table 1.
Tensile properties of mini-composites
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Table 1.
Tensile properties of mini-composites
Material Tensile strength/MPa
As-prepared Oxidation at 1200 ℃ Oxidation at 1400 ℃
SiC/SiC 506±56 391±69 351±56
SiC/SiC-Yb₂Si₂O₇ 484±83 425±21 374±33

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Shuang MU, Qin MA, Yu ZHANG, Xu SHEN, Jinshan YANG, Shaoming DONG. Oxidation Behavior of Yb₂Si₂O₇ Modified SiC/SiC Mini-composites [J]. Journal of Inorganic Materials, 2025, 40(3): 323

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