• 文献标题:   Synergistic effect of graphene/boron nitride binary nanoparticles on aluminum hybrid composite properties
  • 文献类型:   Article
  • 作  者:   SENEL MC, GURBUZ M
  • 作者关键词:   composite, boron nitride, microstructure, aluminum, graphene
  • 出版物名称:   ADVANCED COMPOSITES HYBRID MATERIALS
  • ISSN:   2522-0128 EI 2522-0136
  • 通讯作者地址:  
  • 被引频次:   17
  • DOI:   10.1007/s42114-021-00209-0 EA JAN 2021
  • 出版年:   2021

▎ 摘  要

In this study, hexagonal boron nitride nanoparticulates (BN: 0.5, 1, 1.5, 2 wt.%) and graphene nanoplatelets (GNPs: 0.15, 0.30, 0.45 wt.%) reinforced hybrid aluminum matrix composites were produced via the powder metallurgy (PM) process. In this process, mixing, dispersing, drying, filtering, compaction, and heat treatment were applied. The microstructure, Vickers hardness, density, compressive strength, and phase analysis of Al-BN, Al-BN-graphene composites, and pure Al were evaluated. The phase and microstructural analyses of the specimens were examined by an X-ray diffraction device and a scanning electron microscope. The results showed that maximum density (2.630.01 g/cm(3)), minimum porosity (2.6%), maximum micro Vickers hardness (581.5 HV), and the highest ultimate compressive strength (260 MPa) were achieved at Al-1BN-0.15GNP composite compared with pure Al and Al-BN. A significant improvement in ultimate compressive strength and micro-Vickers hardness of Al-1BN-0.15GNPs was obtained as similar to 225% and similar to 87% in comparison with those of pure aluminum. As a result, the mechanical properties of Al-BN-GNP hybrid composites were improved up to 1%BN and 0.15%graphene contents. Over these contents, the mechanical strength deteriorated due to the clumping of GNPs and nano-BN particles.