Microstructure and Properties of Ni/Al2O3 Composites Prepared by Powder Injection Molding

2018 2nd International Conference on Advanced Technologies in Manufacturing and Materials Engineering

Shang, Feng^1,2,3 ; Cao, Zhenwei^4 ; Zhang, Peng^1 ; Qiao, Bin^1 ; Li, Huaqiang^1

School of Mechanical Engineering, Huaihai Institute of Technology, No.59 Cangwu Road Haizhou District, Lianyungang, Jiangsu

222005, China^1

Marine Resources Development Institute of Jiangsu, No.108 Tongguan South Road Haizhou District, Lianyungang, Jiangsu

222001, China^2

Jiangsu Key Laboratory of Large Engineering Equipment Detection and Control, Xuzhou Institute of Technology, No.1 Fuchun Road Xincheng District, Xuzhou, Jiangsu

221111, China^3

School of Mechanical and Electrical Engineering, China University of Mining and Technology, No.1 Daxue Road, Xuzhou, Jiangsu

221116, China^4

关键词: Comprehensive performance;    Microstructure and mechanical properties;    Microstructure and properties;    Powder injection molding;    Relative density;    Sintering process;    Sintering temperatures;    Vacuum sintering;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/389/1/012022/pdf
DOI  :  10.1088/1757-899X/389/1/012022

来源: IOP

【 摘 要 】

Ni/Al2O3 composite was prepared by powder injection molding, the effects of Ni content and different sintering process on the microstructure and mechanical properties of Ni / Al2O3 composites were studied. The results show that when the Ni content is 10%, the comprehensive performance of Ni / Al2O3 composite is better. The optimum vacuum sintering process of 10%Ni / Al2O3 composite is as follows: sintering temperature of 1500 °C for 1 hour, with the relative density of 96.7%, bending strength of 312 MPa, Vickers hardness of 1528HV and fracture toughness of 5.3 MPa•m1/2.