Study of the mechanical properties, strengthening and toughening mechanisms of Al2O3/TiC micro-nano-composite ceramic tool material

2013 ◽  
Vol 577 ◽  
pp. 9-15 ◽  
Author(s):  
Zengbin Yin ◽  
Chuanzhen Huang ◽  
Bin Zou ◽  
Hanlian Liu ◽  
Hongtao Zhu ◽  
...  
2012 ◽  
Vol 499 ◽  
pp. 132-137
Author(s):  
Z.J. Gao ◽  
Jun Zhao ◽  
Guang Ming Zheng

In this study, an Al2O3-based functionally graded ceramic tool material reinforced with TiCN micro-particles and nano-Al2O3 particles was fabricated by using hot-pressing technique. The experimental results showed that optimal mechanical properties were achieved for the composite with the addition of nano-Al2O3 particles increasing from 10vol.% in the surface to 20vol.% in the core, with the flexural strength, fracture toughness and Vicker’s hardness being 1073MPa, 5.99MPa.m1/2 and 21.78GPa, respectively. The microstructure and phase composition of the composites were characterized with SEM, TEM and XRD. It is believed that addition of nano-Al2O3 increasing from the surface to the core, which developed an nano-particles-rich tougher core and a hard Al2O3/TiCN-rich surface, improved the integrated mechanical properties of micro-nano-composite graded ceramic material.


2016 ◽  
Vol 42 (3) ◽  
pp. 4099-4106 ◽  
Author(s):  
Zengbin Yin ◽  
Juntang Yuan ◽  
Zhenhua Wang ◽  
Hanpeng Hu ◽  
Yu Cheng ◽  
...  

2018 ◽  
Vol 44 (12) ◽  
pp. 13538-13543 ◽  
Author(s):  
Enzhao Cui ◽  
Jun Zhao ◽  
Xuchao Wang ◽  
Jialin Sun ◽  
Xiantong Huang ◽  
...  

2020 ◽  
Vol 46 (2) ◽  
pp. 2317-2324
Author(s):  
Xianhua Tian ◽  
Kuicheng Yan ◽  
Jun Zhao ◽  
Yanhai Cheng ◽  
Zhongbin Wang

2011 ◽  
Vol 335-336 ◽  
pp. 736-739
Author(s):  
Xing Li ◽  
Bin Fang ◽  
Xiu Guo Xu ◽  
Chong Hai Xu

The Al2O3(nm)/SiC(μm)/Al2O3(μm)ceramic tool materials were fabricated by the hot-pressing technique. Effect of the compositions on microstructure and mechanical properties is investigated. With nano-particles content decreasing, the flexural strength increased and fine grains can be obtained. When the nano-alumina content is 60wt%, the grain of this sample is fine, the Vickers hardness and flexural strength are 16.24 GPa and 678 MPa, respectively.


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