Multilayer diamond-like amorphous carbon coatings produced by ion irradiation of polymer films
Multilayer diamond-like amorphous carbon coatings produced by ion irradiation of polymer films
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DOI：
10.1016/j.surfcoat.2017.08.010
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发表时间：
2017-10-25
影响因子：
5.4
通讯作者：
Westerhausen, Christoph
中科院分区：
文献类型：
--
作者：
Buchegger, Sascha;Schuster, Natascha;Westerhausen, Christoph
类金刚石碳（DLC）是一种多用途的涂层材料，广泛应用于各种表面工程领域。在这项研究中，我们生产的DLC涂层的离子辐照，从而重建一个薄的聚合物膜。该过程导致薄的类金刚石碳层，其特征在于其高硬度。然而，由于注入过程中有限的离子范围，这种涂层的最大厚度是有限的。然而，DLC涂层的一些应用需要更大的厚度。因此，我们通过重复应用沉积和转化过程来增加这种DLC涂层的厚度，从而产生更厚的多层膜。我们表明，它们的物理和机械性能，如粗糙度，纳米硬度，sp（3）分数，以及非常重要的厚DLC膜的附着力，这种方式是非常适合所需的应用。虽然我们发现随着涂层厚度的增加，硬度略有下降，sp3分数略低，但我们的结果显示出典型的硬度以及sp3分数，即使是迄今为止生产的最大涂层厚度的a-C：H。(C)2017爱思唯尔B. V.保留所有权利。
Diamond-like carbon (DLC) is known to be a versatile coating material, being found in a wide variety of surface engineering applications. In this study, we produced DLC coatings by ion irradiation and thus reconstruction of a thin polymer film. This procedure leads to a thin diamond-like carbon layer which is characterized by its high hardness. Due to the finite ion range during implantation, however, the maximum thickness of such coatings is limited. Nevertheless, several applications for DLC coatings demand a larger thickness. We thus increased the thickness of such DLC coatings by repeatedly applying the deposition and transformation process, thus creating thicker multilayers. We show that their physical and mechanical properties like roughness, nano-hardness, sp(3) fraction as well as the very important adhesion of thick DLC films produced this way are very well suited for the desired applications. Although we find a small decrease in hardness and a little bit less sp3 fraction with increasing coating thickness, our results exhibit a typical hardness as well as sp3 fraction for a-C:H even for the largest coating thicknesses produced so far. (C) 2017 Elsevier B.V. All rights reserved.