Microstructure Simulation and Toughening Mechanism of Ceramic Tool Material

2011 ◽  
Vol 335-336 ◽  
pp. 688-694
Author(s):  
Xiao Hui Zhu ◽  
Chuan Zhen Huang ◽  
Han Lian Liu ◽  
Bin Zou ◽  
Hong Tao Zhu
Keyword(s):  
Mechanical Properties ◽  
Single Phase ◽  
Three Dimensional ◽  
Tool Material ◽  
Ceramic Tool ◽  
Toughening Mechanism ◽  
C Language ◽  
Finite Element Software ◽  
Microstructure Simulation ◽  
Ceramic Tool Material

Based on the microstructure results of Monte Carlo simulation, a three-dimensional grid model is built up, and imported into the finite element software with C++ language to analyze the mechanical properties of ceramic tool material. The stress field and residual stress of single-phase and multiphase ceramics have been analyzed by the computer simulation technology.

Study on Mechanical Properties of Multi-Scale and Multi-Phase Nanocomposite Ceramic Tool Materials

2006 ◽  
Author(s):  
C. Z. Huang ◽  
H. L. Liu ◽  
J. Wang ◽  
Z. W. Liu
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Single Phase ◽  
Tool Material ◽  
Ceramic Tool ◽  
Alumina Matrix ◽  
Multi Scale ◽  
Nano Scale ◽  
Ceramic Tool Material ◽  
Multi Phase

The single nano-scale and multi-phase nanocomposite ceramic materials including Al2O3/Al2O3n/SiCn and Al2O3/Ti(C0.7N0.3)n/SiCn are successfully fabricated. Their mechanical properties are better than those of the single-phase alumina material and conventional alumina matrix materials. The multi-scale and single-phase nanocomposite ceramic tool material Al2O3/SiCμ/SiCn is also successfully fabricated. Its flexural strength and fracture toughness is higher than those of single-scale materials Al2O3/SiCμ and Al2O3/SiCn. The multi-scale and multi-phase nanocomposite ceramic tool material Al2O3/TiCμ/TiNn is finally developed by incorporation and dispersion of micro-scale TiC particle and nano-scale TiN particle in alumina matrix, which can get higher flexural strength and fracture toughness than those of Al2O3/TiC ceramic tool material without nano-scale TiN particle. The coexistent function of nano-scale Al2O3 or Ti(C0.7N0.3), nano-scale SiC and TiN can reduce the sintering temperature and sintering duration time as well as the grain size, and improve the material densification and mechanical properties. The nano-scale SiC grains locating along the grain boundary and inside the micro-scale alumina can form the hybria intergranular-intragranular microstructure which can result in hybria intergranular-transgranular fracture and improve the mechanical properties of the ceramic material. Crack deflection, forking and bridging effects are the main cause for improving the fracture toughness of the materials including Al2O3/Ti(C0.7N0.3)n/SiCn and Al2O3/TiCμ/TiNn.

Mechanical properties, microstructure and crack healing ability of Al2O3/TiC/TiB2/h-BN@Al2O3 self-lubricating ceramic tool material

2021 ◽  
Vol 47 (10) ◽  
pp. 14551-14560
Author(s):  
Shuai Zhang ◽  
Guangchun Xiao ◽  
Zhaoqiang Chen ◽  
Lianggang Ji ◽  
Chonghai Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Crack Healing ◽  
Ceramic Tool ◽  
Ceramic Tool Material

Effects of Nano-Al2O3 on the Mechanical Property and Microstructure of Nano-Micro Composite Self-Lubricating Ceramic Tool Material

2013 ◽  
Vol 770 ◽  
pp. 308-311 ◽  
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
Zhao Qiang Chen ◽  
Guang Yong Wu
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material ◽  
Composite Self ◽  
Microstructure And Mechanical Property ◽  
Grain Refinement Strengthening

A new nanomicro composite self-lubricating ceramic tool material was prepared with vacuum hot pressing technique. The effect of nanoAl2O3 powders on the microstructure and mechanical properties of nanomicro composite self-lubricating ceramic tool material was investigated. With the increase of nanoAl2O3 content, the hardness and fracture toughness first up then down. When the nanoAl2O3 content is 4 vol.%, the flexural strength, hardness and fracture toughness reaches 562 MPa, 8.46 MPa·m1/2 and 18.95 GPa, respectively. The microstructure and mechanical property of nanomicro composite self-lubricating ceramic tool material can be improved by the grain refinement strengthening of nanoAl2O3.

Mechanical properties and microstructure of Al2O3-SiCw ceramic tool material toughened by Si3N4 particles

2020 ◽  
Vol 46 (7) ◽  
pp. 8845-8852 ◽  
Author(s):  
Zhe Wang ◽  
Yue Liu ◽  
Bin Zou ◽  
Chuanzhen Huang ◽  
Kai Xue ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material

A Study on the Mechanical Properties of Ti(C, N) Based Ceramic Tool Material

2004 ◽  
Vol 471-472 ◽  
pp. 369-373
Author(s):  
Sui Lian Wang ◽  
Li Qiang Xu ◽  
Chuan Zhen Huang ◽  
Han Lian Liu
Keyword(s):  
Mechanical Properties ◽  
Intergranular Fracture ◽  
Hot Pressing ◽  
Tool Material ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Main Fracture ◽  
Ceramic Tool Material ◽  
Fracture Morphologies ◽  
Pressing Technology

Ti(C, N) based ceramic tool materials in the Ti (C0.7N0.3)-(Ni-Co)-Cr3C2-VC system have been made by hot-pressing technology, their mechanical properties and fracture morphologies have been studied under three different fabrication conditions. The results show that the mechanical properties are significantly influenced by fabrication conditions, and the main fracture mode is intergranular fracture.

Mechanical properties and microstructure of Al2O3-TiB2-TiSi2 ceramic tool material

2017 ◽  
Vol 43 (16) ◽  
pp. 14192-14199 ◽  
Author(s):  
Mingshuang Li ◽  
Chuanzhen Huang ◽  
Bin Zhao ◽  
Hanlian Liu ◽  
Jun Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material

Processing and Characterization of an Al2O3/TiCN Micro-Nano-Composite Graded Ceramic Tool Material

2012 ◽  
Vol 499 ◽  
pp. 132-137
Author(s):  
Z.J. Gao ◽  
Jun Zhao ◽  
Guang Ming Zheng
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Nano Particles ◽  
Ceramic Tool ◽  
Nano Composite ◽  
The Core ◽  
Micro Particles ◽  
Ceramic Tool Material ◽  
Graded Ceramic Tool ◽  
Al2o3 Particles

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.

Sign in / Sign up

Export Citation Format

Share Document