Mechanical Behavior of High Boron Content Al-B4C Metal Matrix Composites at Elevated Temperatures

2012 ◽  
Vol 706-709 ◽  
pp. 631-637 ◽  
Author(s):  
X. Grant Chen ◽  
Lyne St-Georges ◽  
M. Roux
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Boron Content ◽  
Elevated Temperatures ◽  
Matrix Composites ◽  
Neutron Absorber ◽  
High Boron ◽  
Thermal Stability Of

High boron content Al-B4C metal matrix composites are highly attractive as an excellent neutron absorber material for the storage of spent nuclear fuels. In the present paper, the mechanical properties of two composites with AA1100 matrix reinforced with 25 and 30 vol.% B4C at ambient and elevated temperatures have been investigated. The thermal stability of two composites at 300°C is experimentally determined. The microstructural features and the tensile fracture at different conditions are examined. It is found that the mechanical properties of both composites remain unchanged at 300°C after a long holding period up to 1000 h. The thermal stability of the mechanical properties of the composites is directly related to the stability of all microstructural compounds of the material. Finally, the effect of the tensile temperatures on the fracture mechanism is assessed.

Thermal Stability of Ball Milled Al / Al-Cu-Fe Quasicrystal Metal Matrix Composites

2004 ◽  
Vol 20-21 ◽  
pp. 157-162 ◽  
Author(s):  
Victor V. Tcherdyntsev ◽  
S.D. Kaloshkin ◽  
E.V. Shelekhov ◽  
E.A. Afonina ◽  
A.M. Blinov ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Thermal Stability Of

Effect of TiB2 particle addition on the mechanical properties of Al/TiB2 in situ formed metal matrix composites

2018 ◽  
Vol 60 (12) ◽  
pp. 1221-1224 ◽  
Author(s):  
Balachandran Gobalakrishnan ◽  
P. Ramadoss Lakshminarayanan ◽  
Raju Varahamoorthi
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Tib2 Particle ◽  
Matrix Composites ◽  
Particle Addition

scholarly journals Interfacial Strengthening of Graphene/Aluminum Composites through Point Defects: A First-Principles Study

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 738
Author(s):  
Xin Zhang ◽  
Shaoqing Wang
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Point Defects ◽  
Metal Matrix ◽  
Interfacial Bonding ◽  
Theoretical Research ◽  
Matrix Composites ◽  
Aluminum Composites ◽  
Single Vacancy ◽  
Design Guideline

The relationship between point defects and mechanical properties has not been fully understood yet from a theoretical perspective. This study systematically investigated how the Stone–Wales (SW) defect, the single vacancy (SV), and the double vacancy (DV) affect the mechanical properties of graphene/aluminum composites. The interfacial bonding energies containing the SW and DV defects were about twice that of the pristine graphene. Surprisingly, the interfacial bonding energy of the composites with single vacancy was almost four times that of without defect in graphene. These results indicate that point defects enhance the interfacial bonding strength significantly and thus improve the mechanical properties of graphene/aluminum composites, especially the SV defect. The differential charge density elucidates that the formation of strong Al–C covalent bonds at the defects is the most fundamental reason for improving the mechanical properties of graphene/aluminum composites. The theoretical research results show the defective graphene as the reinforcing phase is more promising to be used in the metal matrix composites, which will provide a novel design guideline for graphene reinforced metal matrix composites. Furthermore, the sp3-hybridized C dangling bonds increase the chemical activity of the SV graphene, making it possible for the SV graphene/aluminum composites to be used in the catalysis field.

Investigation of mechanical properties of Al6061 with reinforcement of SiC/B4C metal matrix composites

2020 ◽  
Author(s):  
N. Poornachandiran ◽  
R. Pugazhenthi ◽  
S. Vijay Ananth ◽  
T. Gopala Krishnan ◽  
M. Vairavel
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites

Experimental investigations on mechanical properties of Al-B4C metal matrix composites

2021 ◽  
Author(s):  
S. Sathiyaraj ◽  
A. Senthilkumar ◽  
P. Muhammed Ameen ◽  
Rhitwik Sundar ◽  
Vishnu Saseendran
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Experimental Investigations ◽  
Matrix Composites

Studies on mechanical properties of aluminum based hybrid metal matrix composites

2020 ◽  
Vol 33 ◽  
pp. 1144-1148
Author(s):  
B. Suresh Babu ◽  
P. Prathap ◽  
T. Balaji ◽  
D. Gowtham ◽  
S.D. Sree Adi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Hybrid Metal Matrix Composites
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