Influence of the Mechanical Properties of B4C/Al Composite with Graphene Nanosheet Dopping

7th Annual International Conference on Materials Science and Engineering

Zhang, Liu^1 ; Wang, Zhi^1 ; Shi, Guopu^1 ; Li, Qinggang^1 ; Wu, Junyan^1

School of Materials Science and Engineering, University of Jinan, Jinan

250022, China^1

关键词: Graphene nanosheets;    Hot-press sintering;    Microstructure and mechanical properties;    Sintering pressure;    Soaking time;    XRD analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012037/pdf
DOI  :  10.1088/1757-899X/562/1/012037

来源: IOP

【 摘 要 】

Graphene nanosheet has been brought to the B4C/Al composites to investigate the microstructure and mechanical properties of the materials which were prepared via vacuum hot press sintering at 680 °C, with sintering pressure of 30 MPa and soaking time of 90 min. XRD analysis illustrated that there was only one new phase AlB2 detected out in the composite after sintering. The composite without GN addition was endowed better density than the GN addition one. Nevertheless, the mechanical properties of GN addition composite exhibited more superior than that of non GN addition composite, Vickers hardness, bending strength and fracture toughness were achieved respectively 54.13 ± 4.57 Hv, 238.36±10.24 MPa and 4.23±0.12 MPam1/2. In summary, GN has played a satisfactory character in promoting the mechanical property of B4C/Al composites in the present experiment.