| 反应烧结Cr/Si/C复相陶瓷的微观结构表征与力学性能 |
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| 引用本文： | 包建勋,赵汝成. 反应烧结Cr/Si/C复相陶瓷的微观结构表征与力学性能[J]. 佳木斯教育学院学报, 2012, 0(8): 376-377 |
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| 作者姓名： | 包建勋 赵汝成 |
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| 作者单位： | 中国科学院长春光学与精密机械物理研究所 吉林长春 130033 |
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| 摘 要： | 本文采用掺杂Cr2C3的方法探究增韧补强反应烧结SiC陶瓷的途径。通过凝胶注模成型及反应烧结工艺制备Cr/Si/C复相陶瓷由SiC、Si和CrSi2组成,CrSi2由Cr2C3与熔融Si反应生成;材料中SiC颗粒分布均匀,CrSi2存在明显偏析;Gr/Si/C复相陶瓷抗弯强度接近反应烧结SiC/Si陶瓷,平面应变断裂韧性KIC达到3.81MPa.m1/2;CrSi2分布不均和弱化界面结合是抗弯强度以及弹性模量降低的原因。
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| 关 键 词： | Cr/Si/C复相陶瓷 反应烧结 显微组织结构 |
Reaction sintering Cr/Si/C duplex ceramic microstructure characterization and mechanical properties |
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| Bao Jian-xun,Zhao Ru-Cheng. Reaction sintering Cr/Si/C duplex ceramic microstructure characterization and mechanical properties[J]. Journal of Jiamusi Education Institute, 2012, 0(8): 376-377 |
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| Authors: | Bao Jian-xun Zhao Ru-Cheng |
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| Affiliation: | (The Chinese academy of sciences Changchun optical and precision machinery institute of physics,Changchun Jilin,130033,China) |
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| Abstract: | The method of using doping Cr2C3 explore toughening reinforcement reaction sintering SiC ceramic way.Through the gel injection molding molding and reaction sintering process preparation Cr/Si/C duplex ceramic by SiC,Si and CrSi2 composition,CrSi2 by Cr2C3 and melting Si reaction formation;Materials SiC particle distribution uniformity,CrSi2 obvious segregation;Gr/Si/C duplex ceramic flexural strength close to the reaction sintering SiC/Si ceramics,plane strain fracture toughness KIC 3.81 MPa,m1/2;CrSi2 uneven distribution and weakening interface bonding is bending strength and modulus of elasticity reduced reasons. |
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| Keywords: | Cr/Si/C duplex ceramic reaction sintering microscopic organization structure |
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