B-1-3 プローブ共振を用いた高速摺動下におけるナノ厚さ潤滑膜の粘弾性計測に関する研究(B-1 ディスク潤滑膜の特性,口頭発表:ヘッド・ディスク・インターフェイス)

概要

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An understanding of tribological properties of molecularly thin lubricant film is necessary to design the head-disk interface (HDI) of high-recording-density hard disk drives. Characteristic conditions of lubricant shearing at HDI are confinement of lubricant molecules in nanometer-sized gap widths and high shearing speeds. In our previous study, we have developed a highly-sensitive shear force measuring method using oscillating optical fiber probe, which we called the "fiber wobbling method", and achieved viscoelastic measurement of molecularly thin lubricant films. However, in the previous experiments, shearing speeds were much smaller than those in HDI. In this study, we achieved higher shearing speed by utilizing the resonant oscillation of the optical fiber probe and could detect viscoelastic responses of molecularly thin lubricant films.
一般社団法人日本機械学会の論文
2011-03-18