Published March 2017 | Version v1
Journal article Metadata-only

Total-electron-yield soft X-ray absorption spectra of engine oil additives rubbed on alloy surfaces

Creators

  • 1. University of Hyogo, Graduate School of Engineering, Himeji, Hyogo (Japan)
  • 2. Toyota Central R&D Labs., Inc., Nagakute, Aichi (Japan)
  • 3. Center for X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

Description

To clarify the friction mechanism between metals and engine oil, soft X-ray absorption spectra of the metal surfaces rubbed with fundamental engine oils were measured with a total electron yield (TEY) method. X-ray absorption spectra of the engine oil layers on the metal surfaces can be successfully obtained by subtraction of spectra from metals. The obtained CK-XANES of the engine oil layers will provide the chemical state information of the rubbed engine-oil/metal interfaces. (author)

Abstract (Japanese)

金属とエンジンオイルの摩擦メカニズムを解明することを目的として,基本的なエンジンオイルを介して摩擦させた金属面を全電子収量軟X線吸収分光法で観察した.エンジンオイル層の軟X線吸収スペクトルを得るため,金属由来のFeL端ピークをモニターピークとすることで金属由来のスペクトルをバックグラウンドとして削除した.この方法により摩擦部と非摩擦部におけるエンジンオイル層のCK端XANESを抽出することができ,特に摩擦面における薄いエンジンオイル層の状態分析ができる見通しが得られた.(著者)

Additional details

Additional titles

Original title (Japanese)
金属摩擦面におけるエンジンオイル添加剤の全電子収量軟X線吸収測定

Publishing Information

Journal Title
X-sen Bunseki No Shinpo
Journal Volume
48
Series
雑誌名:X線分析の進歩
Journal Page Range
p. 327-337
ISSN
0911-7806

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
54097318
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ACCELERATOR EXPERIMENTAL FACILITIES; ADVANCED LIGHT SOURCE; ENGINES; FRICTION; FUEL ADDITIVES; FUEL OILS; SOFT X RADIATION; SYNCHROTRON RADIATION; X-RAY SPECTROSCOPY
Descriptors DEC
ADDITIVES; BREMSSTRAHLUNG; DISTILLATES; ELECTROMAGNETIC RADIATION; ENERGY SOURCES; FOSSIL FUELS; FUELS; GAS OILS; IONIZING RADIATIONS; LIQUID FUELS; PETROLEUM; PETROLEUM DISTILLATES; PETROLEUM FRACTIONS; PETROLEUM PRODUCTS; RADIATION SOURCES; RADIATIONS; SPECTRA; SPECTROSCOPY; STORAGE RINGS; SYNCHROTRON RADIATION SOURCES; X RADIATION

Optional Information

Notes
14 refs., 8 figs., 1 tab.