Partner: Małgorzata Kalisz


Recent publications
1.Moćko W., Szymańska M., Śmietana M., Kalisz M., Simulation of nanoindentation experiments of single-layer and double-layer thin films using finite element method, Surface and Interface Analysis, ISSN: 0142-2421, DOI: 10.1002/sia.5473, Vol.46, No.ECASIA Special issue paper, pp.1071-1076, 2014
Abstract:

In this work, we focused on investigations of mechanical properties of SiNx and diamond-like carbon thin films deposited by plasma-enhanced chemical vapour deposition method for application in optical devices or solar cells. Mechanical properties of thin films deposited on clean and oxidized silicon substrates were determined by nanoindentation. The main difficulty with the characterization of thin films using nanoindentation method is related to the influence of the substrate on the measured properties of thin layers. We proposed a method to determine the mechanical properties (hardness and Young's modulus) of thin films in single-layer/substrate or double-layer/substrate system through combining the finite element method, nanoindentation experiments and numerical simulations. In this study, a three-dimensional numerical model of nanoindentation tests performed with Vickers diamond indenter was examined to determine the stress distributions during measurement with various maximum loads. The hardness and Young's modulus of the examined layers were determined using two types of procedures, depending on the von Mises equivalent stress distribution obtained at the maximum load. If the size of an elastically deformed region was sufficiently small compared with the thickness of the measured layers, we applied a standard method of measuring at the depth equal to 10% of the layer thickness; otherwise, an approximation method was used to reduce the substrate influence.

Keywords:

silicon nitride, DLC, PECVD, mechanical properties, nanoindentation, FEM

Affiliations:
Moćko W.-IPPT PAN
Szymańska M.-other affiliation
Śmietana M.-other affiliation
Kalisz M.-other affiliation
2.Moćko W., Kaźmierczak P., Kalisz M., Influence of the lighting surface and luminance of the brake lamp on the observation comfort, PRZEGLĄD ELEKTROTECHNICZNY, ISSN: 0033-2097, Vol.89, No.1a, pp.116-121, 2013
3.Moćko W., Szymańska M., Kalisz M., Model elektryczny ładowania akumulatorów trakcyjnych za pomocą energii z ogniw fotowoltaicznych, ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA, ISSN: 0033-2089, Vol.7, pp.45-46, 2013

Conference papers
1.Szymańska M., Kalisz M., Śmietana M., Moćko W., Wyznaczanie twardości warstw azotku krzemu i DLC wytworzonych metodą RF PECVD, XII Krajowa Konferencja Elektroniki, 2013-06-10/06-13, Darłówko Wschodnie (PL), Vol.II, pp.74-79, 2013