Preparation of Ag/reduced graphene oxide reinforced copper matrix composites through spark plasma sintering: An investigation of microstructure and mechanical properties

2020 ◽  
Vol 46 (9) ◽  
pp. 13569-13579 ◽  
Author(s):  
Reza sayyad ◽  
Mohammad Ghambari ◽  
Touradj Ebadzadeh ◽  
Amir Hossein Pakseresht ◽  
Ehsan Ghasali
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Spark Plasma Sintering ◽  
Copper Matrix ◽  
Matrix Composites ◽  
Copper Matrix Composites ◽  
Plasma Sintering ◽  
Reduced Graphene ◽  
Spark Plasma

scholarly journals Improved Mechanical Properties of Ultra-High Shear Force Mixed Reduced Graphene Oxide/Hydroxyapatite Nanocomposite Produced Using Spark Plasma Sintering

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 986
Author(s):  
Bing-Yen Wang ◽  
Steven Hsu ◽  
Chia-Man Chou ◽  
Tair-I Wu ◽  
Vincent K. S. Hsiao
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Spark Plasma Sintering ◽  
Shear Force ◽  
High Shear ◽  
Spray Coatings ◽  
Plasma Sintering ◽  
Reduced Graphene ◽  
Spark Plasma

The addition of nanomaterials, such as graphene and graphene oxide, can improve the mechanical properties of hydroxyapatite (HA) nanocomposites (NCPs). However, both the dispersive state of the starting materials and the sintering process play central roles in improving the mechanical properties of the final HA NCPs. Herein, we studied the mechanical properties of a reduced graphene oxide (r-GO)/HA NCP, for which an ultra-high shear force was used to achieve a nano-sized mixture through the dispersion of r-GO. A low-temperature, short-duration spark plasma sintering (SPS) process was used to realize high-density, non-decomposing r-GO/HA NCPs with an improved fracture toughness of 97.8% via the addition of 0.5 wt.% r-GO. Greater quantities of r-GO improve the hardness and the fracture strength. The improved mechanical properties of r-GO/HA NCPs suggest their future applicability in biomedical engineering, including use as sintered bodies in dentistry, plasma spray-coatings for metal surfaces, and materials for 3D printing in orthopedics.

Sign in / Sign up

Export Citation Format

Share Document