| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Micro- and Nano-Mechanical Behavior of Materials
|
| Presentation Title |
Mechanical Properties of Hybrid Core-shell Ceramic Nanoparticles |
| Author(s) |
Kevin Walier Kayang, Alexey N. Volkov |
| On-Site Speaker (Planned) |
Kevin Walier Kayang |
| Abstract Scope |
Atomistic simulations of quasi-static and dynamic compression of hybrid nanoparticles (NPs) consisting of TiO2 and SiC cores and Al2O3 shells are performed to reveal the microscopic mechanisms of load transfer between cores and shells and fracture of such NPs. The individual NPs are considered as elements of porous films composed of a scaffold of NPs covered by coatings that are used to increase the mechanical integrity and durability of the NP films. These materials have the potential to transform engineering practice in areas such as the design of light-weight and multifunctional aerospace structures, as well as energy absorbing, damping, and generation. The simulations are performed for both crystalline and amorphous NPs. The effect of shells on the key mechanical properties of the NPs, such as effective elastic moduli, yield and fracture stress, and toughness, is determined by comparison of the computational results obtained for core-shell and single-materials NPs. |