Experimental verification of the model of concentration change in lubricating film by measuring the distribution of the refrigerant concentration dissolved in the lubricating film

Research Project

Project/Area Number	23560154
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Design engineering/Machine functional elements/Tribology
Research Institution	Tokyo Institute of Technology
Principal Investigator	TANAKA Shinji 東京工業大学, 理工学研究科, 助教 (40313332)
Project Period (FY)	2011-04-28 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000) Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000) Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000) Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	冷媒 / 潤滑 / 計測 / 共焦点顕微鏡 / レーザ誘起蛍光法 / トライボロジー
Outline of Final Research Achievements	To verify the validity of the analytical model of the varying concentration phenomenon of refrigerant gas dissolved in the lubricating film, the systems for measuring the refrigerant concentration distribution dissolved in the thickness direction in the lubricating film were developed. This system consists of the concentration distribution measurement system combined a confocal microscope with a laser-induced fluorescence method and the lubricating film observation system under refrigerant gas atmosphere. The spatial resolution in the thickness direction of this system was confirmed to be comparable to the theoretical value.