3417 球面スライダの潤滑薄膜を有する磁気ディスク面衝突時における吸着力の測定 : 第2報:粗さの小さい半径2mmのスライダの場合(S70-2 情報機器コンピュータメカニクス(2),S70 情報機器コンピュータメカニクス)

概要

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In order to clarify the dynamic interfacial force between a slider and disk in the nanometer flying height region, we measured the dynamic adhesion force when spherical slider with a radius of 2mm collides with smooth magnetic disks with 0, 1, 2, and 3nm thick lubricant layers. From the measured slider velocity, we calculate the relationship between acceleration (acting force) and displacement. We found that clear adhesion force of 0.38mN (nearly equal to static pull-off force) is observed only at the instant of separation. The adhesion force is acting during a distance of more than 5nm after the maximum adhesion force at low impact velocity. These results indicate that the dynamic adhesion force originates from meniscus formation.
社団法人日本機械学会の論文
2007-09-07