期刊
THIN SOLID FILMS
卷 517, 期 17, 页码 4888-4891出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2009.03.099
关键词
Coating; Hardness; Nanocomposite; Nanoindentation; Sol-gel
Sol-gel coatings derived from glycidoxypropyltrimethoxysilane (GLYMO) and/or methyltrimethoxysilane (MTMS) and silica nanoparticle filler were prepared. The mechanical properties of the coatings were measured as a function of coating composition and thermal treatment temperature using nanoindentation. Thermogravimetric analysis was used to determine the material loss rate during heating and the thermal stability of the materials. The coating hardness (H) and reduced modulus (E-r) strongly increased with increasing thermal treatment temperatures. The changes in the mechanical properties were found to correlate with the conversion of silanol groups measured by infrared spectroscopy. The partial replacement of MTMS by GLYMO in the coatings initially increased the hardness and modulus but larger proportions of GLYMO reduced H and E, It was found that both thermal treatment temperature and variation in coating composition could result in large changes in the key material ratio of H-3/E-r(2). that in turn could strongly influence the mechanical response of the coating. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据