Coarse-Grained Molecular Dynamics Simulations of UV Patterning of Nanometer-Thick Liquid Lubricant Films(Machine Elements, Design and Manufacturing)

DOI Web Site Web Site 1 Citations 28 References Open Access
  • ZHANG Hedong
    Department of Complex Systems Science, Graduate School of Information Science, Nagoya University
  • KOMATSU Shinji
    Department of Complex Systems Science, Graduate School of Information Science, Nagoya University
  • FUKUZAWA Kenji
    名古屋大学工学研究科
  • ITOH Shintaro
    名古屋大学工学研究科

Bibliographic Information

Other Title
  • 紫外線照射によるナノ液体潤滑膜のパターニングに関する粗視化分子動力学シミュレーション(機械要素,潤滑,設計,生産加工,生産システムなど)
  • 紫外線照射によるナノ液体潤滑膜のパターニングに関する粗視化分子動力学シミュレーション
  • シガイセン ショウシャ ニ ヨル ナノ エキタイ ジュンカツ マク ノ パターニング ニ カンスル ソシカ ブンシ ドウリキガク シミュレーション

Search this article

Description

The characteristics of monolayer liquid lubricant films coated on magnetic disks are basically determined by their interactions with disk surfaces. If the strength of the interactions could be patterned by ultraviolet (UV) irradiation through a photomask, it would be possible to attain desired tribological performance by rational design of the pattern. In this research, we developed coarse-grained molecular dynamics simulations to investigate the effect of masked UV irradiation on the distribution of monolayer lubricant films coated over solid surfaces. Consistent with experimental results, the simulation results showed that masked UV irradiation induces molecular flow from non-irradiated toward irradiated areas, and thereby a patterned surface structure with thicker lubricant in the irradiated area than in the non-irradiated area. The lubricant films, however, remained monolayer even in the UV-irradiated area. Our simulation results demonstrated that, rather than stacking of lubricant molecules, the patterned surface structure is caused by the stretch of the lubricant molecules in the film thickness direction following the increase of molecule density in the irradiated area.

Journal

Citations (1)*help

See more

References(28)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top