Nanoindentation study in cold gas dynamic sprayed thin films using molecular dynamics simulation
| Autor: | Tien-Chien Jen, Sunday Temitope Oyinbo, Qingwei Gao, Peter Ozaveshe Oviroh |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Niobium Vanadium chemistry.chemical_element Thermosetting polymer 02 engineering and technology Substrate (electronics) Nanoindentation 021001 nanoscience & nanotechnology 01 natural sciences Copper chemistry Indentation 0103 physical sciences Composite material Thin film 0210 nano-technology |
| Zdroj: | Materials Today: Proceedings. 44:1911-1915 |
| ISSN: | 2214-7853 |
| Popis: | To enhance the efficiency of the cold gas dynamic spray (CGDS) technology-based metal composite membrane, it is extremely important to examine the mechanical characteristics of the CGDS coated thin films at the atomistic level. The nanoindentation test was performed in the present study on vanadium, copper and palladium thin film coated on niobium substrate by using molecular dynamic (MD) simulation. At the indentation region, the thermosetting control is applied with temperature variance from 300 K to 700 K. The results show that as the temperature decreases, the indentation load increases for loading and unloading processes. nanoindentation test was also performed at a different nanoindentation loading rate of 0.5–2.5 A/ps. The measured average hardness of the thin films by nanoindentation method increases in the order of vanadium, copper and palladium with the nanoindentation loading rate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect