Tohoku University

Daicel Corporation

Denso Corporation

Kyocera Corporation

Tocalo Co., Ltd.

Sun Medical Technology Research Corporation

Koshi Adachi

Norihiro Kimoto

Tomohiro Goto

Tsubasa Takahashi

Hideki Kanebako

Koji Kato

Ming Liu

Yasunori Niiyama

Daisuke Suzuki

Takayuki Miyakoshi

Tomoya Kitano

Hisayoshi Ito

Shinji Kobayashi

Shinya Miki

Keiichiro Kaneshima

Yusaku Ishimine

Kentaro Kishi

Koki Kanda

Hirotsuna Sato

A sliding member includes a carbon transfer layer and can superiorly effectively decrease friction and reduce wear. A method produces the sliding member. The sliding member includes a substrate and a carbon transfer layer. The carbon transfer layer is disposed on the surface of the substrate and includes both spbonded carbon and spbonded carbon. The carbon transfer layer preferably has a ratio sp/(sp+sp) of the spbonded carbon to the totality of the spbonded carbon and the spbonded carbon of 0.1 or more.

Sliding member with carbon transfer layer

The present invention provides an initial running-in agent composition suitable for forming a low-friction surface (running-in surface) on a sliding member, such as a hard carbon film, in a system in which water is used as a lubricant. The initial running-in agent composition () according to an embodiment of the present invention contains wateras a lubricant base and nanodiamond particles (). In the initial running-in agent composition (), a content of the water () is preferably 99 mass % or greater, and a content of the nanodiamond particles () is preferably 1.0 mass % or less.

Initial running-in agent composition and initial running-in system including said composition

A sliding member includes: a base material; a solid lubricant layer arranged on a surface of the base material; a defect layer having a material defect, disposed in the solid lubricant layer, and being changeable into an ultra low friction layer by mechanical stress more easily than changing from the solid lubricant layer to the ultra low friction layer; and a ultra low friction layer covering a surface of the defect layer.

Sliding member and method for manufacturing the same

A water lubricant composition () of the present invention contains water () as a lubricating base material and ND particles (), which are hydrogen-reduced nanodiamond particles. The content of the water () in the water lubricant composition () is, for example, 90% by mass or more. The content of the ND particles () in the water lubricant composition () is, for example, 0.1% by mass or less. The water lubricant composition () is suitable for achieving low friction in water lubrication. A water lubricating system of the present invention includes the water lubricant composition () which is being used for the lubrication of a SiC member and/or a SiOmember.

Water lubricant composition and water lubricating system

Provided is a slide device which can reduce a frictional force more than a conventional slide device when used in an aqueous liquid containing a blood component. In a slide device which includes: a fixed-side slide member having a slide surface; and a rotary-side slide member having a slide surface, the slide device being used in an aqueous liquid containing a blood component in a state where the slide surface of the fixed-side slide member and the slide surface of the rotary-side slide member face each other in an opposed manner, at least one of the fixed-side slide member and the rotary-side slide member is formed of a member which is made of a material which contains silicon and has hydrate of silicon oxide on the slide surface thereof.

Slide device, mechanical seal, rotary device, pump and auxiliary artificial heart system

In a guide apparatus having an ultrasonic motor as a driving source of a stage, it is intended to accurately comprehend a degree of abrasion between a friction member of a frictionally driven ultrasonic motor and a drive transmitting member of the stage. A guide apparatus is constructed by an ultrasonic motor, a stage capable of moving on the basis of a friction driving with the ultrasonic motor, a position detecting means for detecting a position of the stage, a driving control portion for outputting a driving command signal to the ultrasonic motor, a non-contact type measuring means for measuring a position information of a friction member in the ultrasonic motor, a slip distance measuring portion for calculating a slip distance of the friction member in the ultrasonic motor, and a monitoring portionequipped with tangential force measuring portion for calculating a tangential force applied to a driving surface of the drive transmitting member in the stage on the basis of the friction driving with the ultrasonic motor.

Ultrasonic motor and guide apparatus having the same as driving source of movable body

Growing community of inventors

Sendai, Japan

Koshi Adachi