| 短SiC纤维增强玻璃陶瓷氧化行为的研究 |
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| 引用本文： | 高积强,黄清伟,仵亚红,殷晓东,金志浩.短SiC纤维增强玻璃陶瓷氧化行为的研究[J].西安交通大学学报,1999,33(2):38-40,45. |
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| 作者姓名： | 高积强 黄清伟 仵亚红 殷晓东 金志浩 |
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| 作者单位： | 西安交通大学,710049,西安 |
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| 基金项目： | 国家教委博士点基金,西安交通大学科学基金 |
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| 摘 要： | 文章研究了单向短切碳化硅纤维增强玻璃陶瓷复合材料的氧化行为。结果表明：复合材料氧化过程中氧的扩散与复合材料中气孔或纤维基体热匹配微裂纹有关，早期氧化造成碳化硅纤维－基体界面富碳层消失和非晶态ＳｉＯ２的形成，非晶态ＳｉＯ２向玻璃陶瓷基体的扩散形成纤维－基体的强结合，导致复合材料整体脆化，强度降低２。
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| 关 键 词： | 短碳化硅纤维 玻璃陶瓷 复合材料 氧化 LAS 增强 |
Oxidation Behavior of Short SiC Fibers-Reinforced Glass-Ceramic Composites |
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| Gao Jiqiang,Huang Qingwei,Wu Yahong,Yin Xiaodong,Jin Zhihao.Oxidation Behavior of Short SiC Fibers-Reinforced Glass-Ceramic Composites[J].Journal of Xi'an Jiaotong University,1999,33(2):38-40,45. |
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| Authors: | Gao Jiqiang Huang Qingwei Wu Yahong Yin Xiaodong Jin Zhihao |
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| Abstract: | The oxidation behavior of unidirectional chopped SiC fiberreinforced LAS (Lithium Aluminosilicate) glassceraimc matrix composite is studied. The monolithic brittle behavior of the composite is a result of the high temperature oxidation. The carbon rich fiber/matrix interfaces are fully oxidized with evidence of amorphous silica at interface. The diffusion of amorphous silica in matrix creates a highcohesion between fiber and matrix. This restricts the transition of reaction gas and causes bubble formation at the interface. |
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| Keywords: | short silicon carbide fiber glass ceramic composite oxidation behavior |
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