Degradation of strength properties and its fracture behaviour of TiB2-TiC-based composite ceramic cutting tool materials at the high temperature

2014 ◽  
Vol 47 ◽  
pp. 1-11 ◽  
Author(s):  
Bin Zou ◽  
Wenbin Ji ◽  
Chuanzhen Huang ◽  
Kaitao Xu ◽  
Shasha Li
Keyword(s):  
High Temperature ◽  
Cutting Tool ◽  
Fracture Behaviour ◽  
Composite Ceramic ◽  
Strength Properties ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
Cutting Tool Materials

Effect of Nano-Additives on Microstructure and Mechanical Properties of Ti(C,N)-TiB2-WC Composite Ceramic Cutting Tool Materials

2013 ◽  
Vol 589-590 ◽  
pp. 337-341 ◽  
Author(s):  
Yue Liu ◽  
Chuan Zhen Huang ◽  
Han Lian Liu ◽  
Bin Zou ◽  
Peng Yao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cutting Tool ◽  
Composite Ceramic ◽  
Hot Press ◽  
Tool Materials ◽  
Micro Scale ◽  
Ceramic Cutting Tool ◽  
Nano Scale ◽  
Microstructure And Mechanical Properties ◽  
Cutting Tool Materials

Ti(C,N)-TiB2-WC composite ceramic cutting tool materials with nano-scale additives Ni and Mo, and micro-scale additives Ni and Mo as sintering aids were sintered respectively at a temperature of 1550 °C for holding time of 1hour in vacuum by a hot-press technique. The effects of nano-scale additives Ni and Mo, and micro-scale additives Ni and Mo on microstructure and mechanical properties of composites were compared and investigated. It is concluded that the wettability of nano-scale Ni and Mo to the composites is better than that of micro-scale Ni and Mo. The nano-scale whiskers were found in the composite ceramic tool materials with nano-scale additives. The addition of nano-scale Ni and Mo instead of micro-scale Ni and Mo could make the flexural strength and fracture toughness of Ti(C, N)-TiB2 –WC composites have a promotion, but could not make the hardness of the composites increase in this study.

Mechanical Properties and Microstructure of Self-Lubricating Ceramic Cutting Tool Materials

2004 ◽  
Vol 471-472 ◽  
pp. 221-224 ◽  
Author(s):  
Jian Xin Deng ◽  
Tong Kun Cao ◽  
Jia Lin Sun
Keyword(s):  
Mechanical Properties ◽  
Cutting Tool ◽  
Solid Lubricants ◽  
Polished Surface ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
Micro Cracks ◽  
The Difference ◽  
Cutting Tool Materials

Al2O3/TiC ceramic tool materials with the addition of solid lubricants such as BN and CaF2 were produced by hot pressing. Effect of the solid lubricants on the microstructure and mechanical properties has been studied. Results showed that AlN phase resulted from the reaction of Al2O3 with BN was formed in Al2O3/TiC/BN composite after sintering. Significant micro-cracks resulted from the residual stress owing to the difference in the thermal expansion coefficient were found on the polished surface, and caused large mechanical properties degradation. While Al2O3/TiC/CaF2 composite showed higher flexural strength, fracture toughness, and hardness compared with that of Al2O3/TiC/BN composite owing its porosity absent and finer microstructure.

Wear and design of ceramic cutting tool materials

Wear ◽  
1989 ◽  
Vol 133 (2) ◽  
pp. 309-321 ◽  
Author(s):  
S.-T. Buljan ◽  
S.F. Wayne
Keyword(s):  
Cutting Tool ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
Cutting Tool Materials
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