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  4. № 11/12 2020
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SINTERED ALUMINUM–GRAPHENE NANO-BIO COMPOSITE MATERIALS FOR THE MEDICAL APPLICATION

Dapeng Duan 1,
 
Baofeng Li 2,
 
Parul Kumar Sharma 3,
 
Monidipa Pramanik 3,
 
Shashi B. Singh 3,
 
Sunil Kumar Pradhan 3
 

1 Department of Orthopedics, Shaanxi Provincial people’s Hospital, 256 Friendship West Road, Beilin District, Xian, Shaanxi , 710068, China
2 Department of Minimally Invasive Orthopedic, Shandong Provincial Hospital of Traditional Chinese Medicine, Shandong Province , Jinan, 250011, China
3 Indian Institute of Science Education and Research, Berhampur, Odisha, 7620010, India
sunilpradha@gmail.com

Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2020, #11/12
http://www.materials.kiev.ua/article/3149

Abstract

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.


BONE RESEARCH, EDS, ELECTRONIC MICROSCOPY, GRAPHENE, POWDER METALLURGY METHOD

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