Microstructure and mechanical properties of Ag-containing diamond-like carbon films in mid-frequency dual-magnetron sputtering

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Detail(s)

Original languageEnglish
Pages (from-to)1431-1435
Journal / PublicationApplied Surface Science
Volume256
Issue number5
Publication statusPublished - 15 Dec 2009

Abstract

Seven diamonds-like carbon (Ag-DLC) films with different Ag contents were deposited on (1 0 0) Si substrate in a mid-frequency dual-magnetron system. Studies were performed to investigate the influence of the Ag content and nanograin size on the microstructure and mechanical properties of the films. Results showed: (i) the dispersion of Ag nanocrystallites within the amorphous DLC matrix, and the tendency for the size of the Ag nanocrystallite to increase with the Ag content; (ii) the exhibition of higher hardness, lower intrinsic stress and better adhesion for the films with Ag content ranging between 7.4 and 12.5 at% when compared with the films of Ag content in range of 16.8-24.7 at%; and (iii) the achievement of the best mechanical properties for the film deposited with 9.6 at% Ag. © 2009 Elsevier B.V. All rights reserved.

Research Area(s)

  • Ag content, Ag-containing diamond-like carbon film, Mechanical behavior, Microstructure