当前位置: X-MOL 学术Powder Metall. Met. Ceram. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Sintered Aluminum–Graphene Nano-Bio Composite Materials for the Medical Application
Powder Metallurgy and Metal Ceramics ( IF 0.9 ) Pub Date : 2021-04-28 , DOI: 10.1007/s11106-021-00198-1
Dapeng Duan , Baofeng Li , Parul Kumar Sharma , Monidipa Pramanik , Shashi B. Singh , Sunil Kumar Pradhan

It is known that graphene is stronger than steel. It is characterized by extremely high values of the Young's modulus (up to 1 TPa), strength (~125 GPa) and thermal conductivity (~5000 W/(m · K)). Therefore, in this work it is used to obtain nano-bio composite materials aluminum–graphene using powder metallurgy methods, in particular high-energy ball grinding followed by vacuum sintering. Sintered composite materials were evaluated using modern methods of microstructure analysis, such as scanning electron microscopy with field emission (FE-SEM), energy dispersion spectroscopy (EDS), transmission electron microscopy (TEM) and Raman spectroscopy for qualitative and quantitative analysis of aluminum characteristics. According to the results of research, a homogeneous distribution of components is observed in the structure of the material over the given scan areas. The relative density of the composite after sintering is ≈97.5%. Data on the electrical conductivity of aluminum-graphene nano-structured bio-composite materials provide grounds for their use in bone engineering.



中文翻译:

医用烧结铝石墨烯纳米生物复合材料

已知石墨烯比钢强。它的特征在于极高的杨氏模量(最高1 TPa),强度(〜125 GPa)和热导率(〜5000 W /(m·K))。因此,在这项工作中,使用粉末冶金方法,特别是高能球磨,然后进行真空烧结,来获得纳米生物复合材料铝-石墨烯。使用现代微观结构分析方法对烧结复合材料进行了评估,例如具有场发射的扫描电子显微镜(FE-SEM),能量色散光谱(EDS),透射电子显微镜(TEM)和拉曼光谱,用于铝特性的定性和定量分析。根据研究结果,在给定的扫描区域中,在材料的结构中观察到了组分的均匀分布。烧结后复合材料的相对密度约为97.5%。铝-石墨烯纳米结构生物复合材料的电导率数据为它们在骨工程中的应用提供了依据。

更新日期:2021-04-29
down
wechat
bug