Nanoindentation study in cold gas dynamic sprayed thin films using molecular dynamics simulation

Sunday Temitope Oyinbo, Tien Chien Jen, Peter Ozaveshe Oviroh, Qingwei Gao

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

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 Å/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.

Original languageEnglish
Pages (from-to)1911-1915
Number of pages5
JournalMaterials Today: Proceedings
Volume44
DOIs
Publication statusPublished - 2021
Event11th International Conference on Materials Processing and Characterization - Indore, India
Duration: 15 Dec 202017 Dec 2020

Keywords

  • Hardness
  • Loading Rate
  • Molecular Dynamics
  • Nanoindentation

ASJC Scopus subject areas

  • General Materials Science

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