期刊
SURFACE & COATINGS TECHNOLOGY
卷 142, 期 -, 页码 314-320出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0257-8972(01)01081-7
关键词
microwave plasma; tetramethylsilane; optical emission spectroscopy; hard coatings
In a tetramethylsilane (TMS) (Si(CH3)(4))/argon microwave discharge used for deposition, optical emission spectroscopy (OES) measurements are carried out along the reactor axis between the precursor inlet and the deposition surface which is independently heated. The results are examined in connection with the deposit features. The changes in the relative amounts of the detected species such as H, Si+, H-2, CH, C-2, SiH and SiC2 highlight competitions between the decomposition of the precursor and recombinations in the plasma flow. This leads to the occurrence of reactive bond carriers Si-C, C-C, C-H when close to the substrate. It appears that hydrogen is mainly carried to the growing surface through species bonded to carbon. Some film characteristics revealed by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) characterizations and hardness measurements are discussed and can be well correlated to trends detected in the gas phase. ne interest of such films whose features (hardness and low dry friction coefficient) can be adjusted is underlined. (C) 2001 Elsevier Science BN. All rights reserved.
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