磁気ディスク表面におけるナノ分子潤滑膜の存在形態と流動特性に及ぼす紫外線照射の効果(機械要素,潤滑,工作,生産管理など)

概要

論文の詳細を見る
To tailor the characteristics of molecularly thin lubricant films, magnetic disk surfaces coated with nanometer-thick perfluoropolyether AM 3001 lubricant films were irradiated with 184.9 and 253.7nm ultraviolet (UV) rays. We elucidated the effect of UV irradiation on the interactions between the lubricant and the magnetic disk surface via surface energy, bonded lubricant thickness and lubricant spreading measurements for films with and without UV irradiation. We found that UV irradiation decreased the dispersive and polar surface energies of the lubricant films by 20 and 80 percent, respectively; increased bonded lubricant thickness; and decelerated lubricant spreading. These results indicated that dispersion and polar interactions between lubricant molecules and the magnetic disk surface were strengthened by UV irradiation.
2006-04-25