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Effect of Rare Earths on Mechanical Properties and Microstructure of TiCN/Al_2O_3 Ceramics

机译：稀土对TiCN / Al_2O_3陶瓷力学性能和微观结构的影响

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The effects of Y on mechanical properties and microstructure of TiCN/Al_2O_3 ceramics were studied in details. The experimental results show that the mechanical properties and microstructure can be improved by adding rare earth in TiCN/Al_2O_3 ceramics, flexural strength and fracture toughness of the composites increased when Y is doped by 18.99% and 18.58% than those of the matrix, respectively. Microstructure of cracks extension was observed through SEM and TEM. The mechanics of particles bridge, cracks branch and cracks deflection are enforced obviously during the processes of cracks extension because strong interfaces and weak interfaces coexist, so manifold mechanics of enforcement of toughness act upon together to increase fracture toughness of TiCN/Al_2O_3 doped with Y.

机译：详细研究了Y对TiCN / Al_2O_3陶瓷力学性能和微观结构的影响。实验结果表明，在TiCN / Al_2O_3陶瓷中添加稀土可以改善力学性能和显微组织，当Y掺杂量比基体材料高18.99％和18.58％时，复合材料的弯曲强度和断裂韧性提高。通过SEM和TEM观察到裂纹扩展的微观结构。 Y掺杂TiCN / Al_2O_3的强界面和弱界面并存，在裂纹扩展过程中明显增强了颗粒桥，裂纹分支和裂纹变形的力学。

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来源
《Journal of Rare Earths》|2004年|P.132-135|共4页
会议地点 Yangzhou(CN)
作者
Li Xikun; Xiu Zhimeng; Sun Xundong;
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作者单位

School of Materials, Shenyang University of Science and Technology, Shenyang 110168, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类稀土元素和分散元素;
关键词
rare earths; TiCN/Al_2O_3; mechanical property; microstructure; cracks extension; mechanics of enforcement of toughness;

机译：稀土; TiCN / Al_2O_3;力学性能;显微组织;裂纹扩展;韧性实施机理;

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1. Effect of Rare Earths on Mechanical Properties and Microstructures of Si_3N_4-based Ceramics [J] . MU Bai-Chun, Li Ming, YOU Xiang-qun Journal of rare earths . 2000,第1期

机译：稀土对Si_3N_4基陶瓷力学性能和微观结构的影响
2. Effect of Rare Earths on Mechanical Properties and Microstructures of Si_3N_4-based Ceramics [J] . MU Bai-Chun, Li Ming, YOU Xiang-qun Journal of rare earths . 2000,第1期

机译：稀土对Si_3N_4基陶瓷力学性能和微观结构的影响
3. Microstructure and mechanical properties of gas pressure sintered Al_2O_3/TiCN composite [J] . Haitao Yang, Fuliang Shang, Ling Gao CERAMICS INTERNATIONAL . 2007,第8期

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4. Effect of Rare Earths on Mechanical Properties and Microstructure of TiCN/Al_2O_3 Ceramics [C] . Li Xikun, Xiu Zhimeng, Sun Xundong, International Conference on Rare Earth Ceramics and Glass . 2004

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6. Mechanical Properties and Microstructures of Laser–TIG Welded ME21 Rare Earth Mg Alloy [O] . Taotao Li, Gang Song, Zhaodong Zhang, 2019

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7. Influence of rare-earth additives (La, Sm and Dy) on the microstructure and dielectric properties of doped BaTiO3 ceramics [O] . Paunović Vesna, Živković Lj. 2010

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8. Microstructure and Mechanical Properties of the Iron/Rare-Earth Intermetallic Compounds, [R] . crowe, c. robert 1976

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Effect of Rare Earths on Mechanical Properties and Microstructure of TiCN/Al_2O_3 Ceramics

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