Title
Tribological and Mechanical Performance of Ti2AlC and Ti3AlC2 Thin Films
Date Issued
01 January 2022
Access level
metadata only access
Resource Type
journal article
Author(s)
Quispe R.
Torres C.
Eggert L.
Ccama G.A.
Kurniawan M.
Hopfeld M.
Zárate J.L.
Rosenkranz A.
Acosta J.A.
Bund A.
Schaaf P.
Publisher(s)
John Wiley and Sons Inc
Abstract
Mn+1AXn (MAX) phases are novel structural and functional materials with a layered crystal structure. Their unique properties such as good machinability, high electrical conductivity, low friction, and corrosion resistance are appealing for many engineering applications. Herein, Ti2AlC and Ti3AlC2 MAX thin films are synthesized by magnetron sputtering and subsequent thermal annealing. A multilayer approach is used to deposit single-element nanolayers of titanium, aluminum, and carbon onto silicon substrates with a double-layer-diffusion barrier of SiO2 and SixNy. Ti2AlC and Ti3AlC2 thin films (thickness ≈500 nm) are formed via rapid thermal annealing and verified by X-Ray diffraction. Nanoindentation tests show hardness values of about 11.6 and 5.3 GPa for Ti2AlC and Ti3AlC2, respectively. The tribological behavior of the Ti2AlC and Ti3AlC2 thin films against AISI 52100 steel balls under dry sliding conditions is studied using ball-on-flat tribometry. The resulting coefficient of friction (CoF) for Ti2AlC and Ti3AlC2 ranges between 0.21–0.42 and 0.64–0.91, respectively. The better tribological behavior observed for Ti2AlC thin films is ascribed to its smaller grain size, reduced surface roughness, and higher hardness.
Language
English
OCDE Knowledge area
Ingeniería eléctrica, Ingeniería electrónica
Ingeniería de materiales
Subjects
Scopus EID
2-s2.0-85131050354
Source
Advanced Engineering Materials
ISSN of the container
14381656
Source funding
Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica
Sponsor(s)
R.Q. acknowledges the doctoral grant provided by CONCYTEC (contract number 236-2015-FONDECYT). C.T. acknowledges the doctoral grant Huiracocha (rectoral resolution number 338/2018) from Pontificia Universidad Católica del Perú (PUCP). This research was partially funded by the internal grant CAP PI0732 and CAP 739 from PUCP and the DAAD-CONCYTEC research initiative (Project number 137-2018-FONDECYT). The authors would like to acknowledge Mr. Joachim Döll, Dr. Manuel Oliva-Ramirez, Hauke-Lars Honig, M.Sc., Theresa Scheler, M.Sc., and Yesenia Sauñi, M.Sc., from the Center for Micro and Nanotechnology (ZMN), a DFG-funded core facility of TU Ilmenau, for their support with the sputtering process and handling some characterization devices. Furthermore, the authors would like to express their gratitude to Prof. Hartmut Witte, Dipl.-Ing. Thomas Helbig, Dipl.-Ing. Sebastian Köhring, and Dipl.-Betriebswirt Wolfgang Kempf from the Biomechatronics Group at TU Ilmenau for their support. A.R. gratefully acknowledges the financial support given by ANID-Chile within the project Fondequip EQM190057 and Fondecyt Regular 1220331.
Sources of information:
Directorio de Producción Científica
Scopus