Mechanical properties and microstructure of spark plasma sintered Al2O3-SiCw-Si3N4 composite ceramic tool materials

2021 ◽  
Author(s):  
Zheng Zhang ◽  
Yue Liu ◽  
Hanlian Liu
Keyword(s):  
Mechanical Properties ◽  
Composite Ceramic ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Spark Plasma

Fabrication and Mechanical Properties of Homogenous and Graded Si3N4/(W, Ti)C Nano-Composite Ceramic Tool Materials

2014 ◽  
Vol 800-801 ◽  
pp. 511-515
Author(s):  
Xian Hua Tian ◽  
Jun Zhao ◽  
Shuai Liu ◽  
Zhao Chao Gong
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Composite Ceramic ◽  
Ceramic Tool ◽  
Graded Materials ◽  
Tool Materials ◽  
Graded Structure ◽  
Design Ideas ◽  
Novel Design

Close attention has been paid to Functional graded materials (FGMs) worldwide for their novel design ideas and outstanding properties. To verify the advantage of FGMS in the design of ceramic tool materials, Si3N4/(W, Ti)C nanocomposite ceramic tool materials with homogenous and graded structure were fabricated by hot pressing and sintering technology. The flexural strength, fracture toughness and hardness of the sintered composites were tested and compared. The experimental results showed that the graded structure improved mechanical properties of the ceramic tool materials, especially the flexural strength and fracture toughness. The introduction of residual compressive stress in the surface layer contributes to the improvement of the properties .

High temperature mechanical properties of Al2O3/TiC micro–nano-composite ceramic tool materials

2013 ◽  
Vol 39 (8) ◽  
pp. 8877-8883 ◽  
Author(s):  
Zengbin Yin ◽  
Chuanzhen Huang ◽  
Bin Zou ◽  
Hanlian Liu ◽  
Hongtao Zhu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Composite Ceramic ◽  
Ceramic Tool ◽  
Nano Composite ◽  
Tool Materials ◽  
High Temperature Mechanical Properties

Study on the Microstructure and Mechanical Properties of TiB2-Ti(C,N) Composite Ceramic Tool Materials

2012 ◽  
Vol 426 ◽  
pp. 155-158 ◽  
Author(s):  
Lin Liu ◽  
Chuan Zhen Huang ◽  
Bin Zou ◽  
Liang Xu ◽  
H.L. Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Composite Ceramic ◽  
Fracture Pattern ◽  
Sintering Process ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Microstructure And Mechanical Properties ◽  
Hot Press Sintering

TiB2-Ti(C, N)-(Ni, Mo) composite ceramic tool materials were fabricated by the hot-press sintering technology. The effects of the content of Ti(C, N) on the microstructure and mechanical properties were investigated by XRD and SEM observations. It is shown that the grain size of the composites is small, the fracture surface is irregularity, the grain boundaries of TiB2 and Ti(C, N) are connected tightly, and a new crystalline phase of MoNi is formed. A small amount of Ti(C, N) is decomposed into TiN, and the decomposition of Ti(C, N) is intensified as the content of Ti(C, N) is increased during the sintering process. The fracture pattern is the combination of the intergranular mode and transgranular mode. It is found that the flexural strength and fracture toughness of TiB2-Ti(C, N)-(Ni, Mo) composites increase consistently owning to the addition of Ti(C, N), the maximum resultant mechanical properties of TiB2-Ti(C, N)-(Ni, Mo) composites are 1019.53MPa for the flexural strength, 6.89MPa•m1/2 for the fracture toughness and 23.65GPa for Vickers hardness.

Fabrication and mechanical properties of Si3N4/(W, Ti)C/Co graded nano-composite ceramic tool materials

2015 ◽  
Vol 41 (3) ◽  
pp. 3381-3389 ◽  
Author(s):  
Xianhua Tian ◽  
Jun Zhao ◽  
Yintao Wang ◽  
Feng Gong ◽  
Wenzhen Qin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Ceramic ◽  
Ceramic Tool ◽  
Nano Composite ◽  
Tool Materials

Microstructure and Mechanical Properties of Ti(C,N)-TiB2-WC Composite Ceramic Tool Materials

2012 ◽  
Vol 500 ◽  
pp. 673-678 ◽  
Author(s):  
Yue Liu ◽  
Chuan Zhen Huang ◽  
Han Lian Liu ◽  
Bin Zou ◽  
Qiang Shi
Keyword(s):  
Mechanical Properties ◽  
Energy Dispersive Spectrometry ◽  
Composite Ceramic ◽  
Hot Press ◽  
Ceramic Tool ◽  
Sintering Aids ◽  
X Ray Diffraction ◽  
X Ray ◽  
Tool Materials ◽  
Microstructure And Mechanical Properties

Ti (C,N)-TiB2-WC composite ceramic tool materials with sintering aids such as Ni and Mo were fabricated at a temperature of 1550 °C for 1h sintering duration time in vacuum by a hot-press technique. The microstructure and mechanical properties were investigated. The composite ceramic tool materials were analyzed by means of scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive spectrometry (EDS). The main phases were composed of Ti (C, N), TiB2, WC and MoC, which indicated that no severe chemical reactions occurred in the composite. The flexural strength, fracture toughness and hardness of Ti (C,N)- 20 wt.%TiB2-WC ceramic material were 795.7 MPa, 6.4 MPa·m1/2 and 19.2 GPa respectively.

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