scholarly journals Development of Zirconia Nanocomposite Ceramic Tool and Die Material Based on Tribological Design

10.5772/38722 ◽  
2012 ◽  
Author(s):  
Chonghai Xu ◽  
Mingdong Yi ◽  
Jingjie Zhang ◽  
Bin Fang ◽  
Gaofeng Wei
Keyword(s):  
Ceramic Tool ◽  
Die Material

Influences of Sintering Process on the Microstructure and Mechanical Behavior of ZrO2 Nano-Composite Ceramic Tool and Die Material

2010 ◽  
Vol 154-155 ◽  
pp. 1356-1360 ◽  
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
Jing Jie Zhang ◽  
Zhen Yu Jiang
Keyword(s):  
Mechanical Properties ◽  
Ceramic Material ◽  
Composite Ceramic ◽  
Sintering Process ◽  
Ceramic Tool ◽  
Nano Composite ◽  
Pure Zro2 ◽  
Die Materials ◽  
Die Material ◽  
Composite Ceramic Material

A new ZrO2 nano-composite ceramic tool and die material was prepared with vacuum hot pressing technique. The effects of sintering parameters on the nano-composite ceramic tool and die materials were studied. The results indicated that the mechanical properties of ZrO2 nano-composite ceramic tool and die material with the additions of TiB2 and Al2O3 are higher than that of the pure ZrO2 ceramic material. Sintering at 1100 for 120min could improve the density and mechanical properties of ZrO2 nano-composite ceramic material. The flexural strength, fracture toughness and hardness with the optimum sintering parameters can reach 878MPa, 9.54MPa•m1/2 and 13.48GPa, respectively, obviously higher than that with non-optimum sintering parameters.

Optimization of the Hot Pressing Parameters of Nanocomposite Ceramic Tool and Die Materials: I. with BP Neural Network Method

2010 ◽  
Vol 154-155 ◽  
pp. 1114-1118
Author(s):  
Jing Jie Zhang ◽  
Chong Hai Xu ◽  
Ming Dong Yi ◽  
Hui Fa Zhang ◽  
Xing Hai Wang
Keyword(s):  
Neural Network ◽  
Hot Pressing ◽  
Back Propagation ◽  
Back Propagation Neural Network ◽  
Ceramic Tool ◽  
Network Method ◽  
Die Materials ◽  
Die Material ◽  
Set Up ◽  
The Relationship

In this paper, back propagation neural network was used in the optimum design of the hot pressing parameters of an advanced ZrO2/TiB2/Al2O3 nanocomposite ceramic tool and die material. The BP algorithm could set up the relationship well between the hot pressing parameters and mechanical property of nanocomposite ceramic tool and die materials. After analyzed the predicted results, the best predicted results were the sintering temperature was 1420°C and the holding time was 60min. Under these hot pressing parameters, the best flexural strength and the best fracture toughness of the material could be obtained.

Effect of Hot Pressing Technology on the Microstructure and Mechanical Properties of ZrO2 Nano-Composite Ceramic Tool and Die Material

2011 ◽  
Vol 686 ◽  
pp. 396-400
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
Jing Jie Zhang ◽  
Zhen Yu Jiang
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Fracture Mode ◽  
Hot Pressing ◽  
Composite Ceramic ◽  
Ceramic Tool ◽  
Nano Composite ◽  
Die Material ◽  
Pressing Technology

A new nano-composite ceramic tool and die material was prepared by vacuum hot pressing technique. The effect of hot pressing technology on the microstructure and mechanical properties of ZrO2nano-composite ceramic tool and die material was investigated systemically, and the ceramic tool and die material with good mechanical properties was fabricated successfully. Results show that, the highest flexural strength, fracture toughness and hardness of ZrO2nano-composite ceramic tool and die material reaches 1055 MPa, 10.57 MPa∙m1/2 and 13.59 GPa, respectively by means of the vacuum hot pressing technique at 1430 °C for 60min at 35MPa. The flexural strength and fracture toughness has been improved greatly by the optimization of hot pressing technology. In the materials, the optimum sinter process could ensure the t-ZrO2stabilized till room temperature that can enhance the toughening effect of ZrO2. The microstructure of ZrO2nano-composite ceramic tool and die materials were improved by the optimization of hot pressing technology, and the fracture mode is the typical mixed trans/inter-granular fracture mode.

Tribological Design of Zirconia Nanocomposite Ceramic Tool and Die Material

2011 ◽  
Vol 697-698 ◽  
pp. 142-146 ◽  
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
X.H. Wang ◽  
Hui Fa Zhang
Keyword(s):  
Mechanical Properties ◽  
Friction And Wear ◽  
Composite Ceramic ◽  
Ceramic Tool ◽  
Wear Properties ◽  
Nano Composite ◽  
Die Materials ◽  
Die Material ◽  
Friction And Wear Properties ◽  
Pressing Technology

A new ZrO2 nano-composite ceramic tool and die material was prepared with vacuum hot pressing technology. The friction and wear behaviors of ZrO2 nano-composite ceramic tool and die materials in sliding against 45 chilled steel rings under dry friction were investigated by using an MMW-1A abrasion wear tester. The mechanical properties and the friction and wear properties of the composites with various compositions and contents were studied. It is indicated that the changing trends of the wear rate and the mechanical properties of the composites with the change of TiB2 and Al2O3 contents are roughly the same, but the friction coefficient is not obviously. The friction and wear properties and the mechanical properties are finer when the TiB2 and Al2O3 content is both 10%.

Optimization Design on the Mechanical Properties of Ceramic Tool and Die Material with Immune Algorithm

2011 ◽  
Vol 704-705 ◽  
pp. 1083-1088
Author(s):  
Hui Fa Zhang ◽  
Chong Hai Xu ◽  
Jing Jie Zhang ◽  
Xing Hai Wang
Keyword(s):  
Mechanical Properties ◽  
Optimization Design ◽  
Optimal Solution ◽  
Mathematic Model ◽  
Immune Algorithm ◽  
Ceramic Tool ◽  
Best Value ◽  
Die Materials ◽  
Die Material ◽  
Computational Intelligent

Immune algorithm is a computational intelligent method which imitates the information processing properties of the natural immune system. It is one of the effective global optimization algorithms with higher global convergence. In this paper, mathematic model between the mechanical properties and the constituent of Al2O3 based ceramic tool and die material is established with the method of regression analysis. The obtained relationship function works as the optimum objective function. The immune algorithm is then used to optimize the mechanical properties of material. The best value of fracture toughness, hardness and flexural strength is 5.356 MPa·m1/2, 20.702 GPa and 731.96 MPa, respectively. The volume fractions of SiC and Ti (C,N) can be obtained when the mechanical properties of material reach the optimum. The result shows that using immunity algorithm can find the global optimal solution rapidly, and avoid the premature convergence phenomena existed in the genetic algorithm. Comparing the optimal results with experimental results, the relative error is small. It suggested that the immune algorithm can well be used for the optimum design of ceramic tool and die materials.

Optimization of the Hot Pressing Parameters of Nanocomposite Ceramic Tool and Die Materials: II. with Hybrid GA-BP Method

2010 ◽  
Vol 154-155 ◽  
pp. 1091-1095
Author(s):  
Jing Jie Zhang ◽  
Chong Hai Xu ◽  
Ming Dong Yi ◽  
Hui Fa Zhang ◽  
Xing Hai Wang
Keyword(s):  
Neural Network ◽  
Process Design ◽  
Hot Pressing ◽  
Hybrid Algorithm ◽  
Back Propagation ◽  
Bp Algorithm ◽  
Ceramic Tool ◽  
Die Materials ◽  
Die Material ◽  
Two Hybrid

In this paper, the two hybrid algorithms of back propagation artificial neural network and genetic algorithm were used in the optimum design of the hot pressing parameters of an advanced ZrO2/TiB2/Al2O3 nanocomposite ceramic tool and die material. Compared with the BP algorithm, the predicted results of hybrid algorithm indicated that the combination algorithm can offer a robust and efficient way for the fabrication process design of ceramic tool and die materials.

The performance of ceramic tool materials for the machining of cast iron

Wear ◽  
1989 ◽  
Vol 135 (1) ◽  
pp. 147-159 ◽  
Author(s):  
S.K. Bhattacharyya ◽  
E.O. Ezugwu ◽  
A. Jawaid
Keyword(s):  
Cast Iron ◽  
Ceramic Tool ◽  
Tool Materials

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
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