Effects of sintering processes on mechanical properties and microstructure of TiB2–TiC+8wt% nano-Ni composite ceramic cutting tool material

2012 ◽  
Vol 540 ◽  
pp. 235-244 ◽  
Author(s):  
Bin Zou ◽  
Chuanzhen Huang ◽  
Jinpeng Song ◽  
Ziye Liu ◽  
Lin Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cutting Tool ◽  
Tool Material ◽  
Composite Ceramic ◽  
Ceramic Cutting Tool ◽  
Sintering Processes

Mechanical Properties and Microstructure of TiN-TiB2 Composite Ceramic Cutting Tool Material

2014 ◽  
Vol 800-801 ◽  
pp. 430-434 ◽  
Author(s):  
Li Mei Wang ◽  
Han Lian Liu ◽  
Chuan Zhen Huang ◽  
Xue Fei Liu ◽  
Bin Zou
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Cutting Tool ◽  
Sintering Temperature ◽  
Tool Material ◽  
Composite Ceramic ◽  
Ceramic Cutting Tool

TiN-TiB2 composite ceramic cutting tool material was prepared with hot pressed sintering in vacuum. The effects of sintering temperature and Ni additive on mechanical properties and microstructure were investigated. It is shown in the results that the fracture toughness decreases consistently with an increase of the sintering temperature, while the flexural strength of the TiN-TiB2 composite increases firstly and then decreases with an increase of the sintering temperature. The flexural strength of the TiN-TiB2 composite increases firstly and then decreases with an increase of the Ni additive, while the fracture toughness increases consistently with an increase of the Ni additive. The optimum comprehensive mechanical properties were obtained with the additive of 5wt.% Ni while sintered at 1650°C; the corresponding values were as follows: flexural strength of 966.1±190MPa, fracture toughness of 6.36± 0.9MPa·m1/2 and hardness of 18.8±2.4GPa respectively.

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.

Synergistically toughening effect of SiC whiskers and nanoparticles in Al2O3-based composite ceramic cutting tool material

2016 ◽  
Vol 29 (5) ◽  
pp. 977-982 ◽  
Author(s):  
Xuefei Liu ◽  
Hanlian Liu ◽  
Chuanzhen Huang ◽  
Limei Wang ◽  
Bin Zou ◽  
...  
Keyword(s):  
Cutting Tool ◽  
Tool Material ◽  
Composite Ceramic ◽  
Ceramic Cutting Tool ◽  
Sic Whiskers
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