The tribochemical performance of nano/micrometre borate modified by an N-containing compound as an oil additive

Yulin Qiao; Weimin Liu; Binshi Xu; Shining Ma; Qunji Xue

doi:10.1002/ls.3010150409

The tribochemical performance of nano/micrometre borate modified by an N-containing compound as an oil additive

Yulin Qiao, Weimin Liu, Binshi Xu, Shining Ma, Qunji Xue

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

An N-modified nano/micrometre borate (MNMB) as an oil additive was synthesised by an ultrasonic dispersion and emulsion reaction in the microemulsion phase. The particles of the MNMB additive were between 20 and 500 nm in diameter. The tribological properties of the MNMB as an oil additive were investigated using a four-ball tester. The results reveal that the MNMB possesses good tribological properties. When the boron concentration is 0.05 wt.%, the wear-scar diameter is smallest and the seizure load is highest. The antiwear and extreme-pressure properties of the MNMB were best at a viscosity of 65.3 mm/s². Small-area X-ray photoelectron spectroscopy (XPS) and electron probe microanalysis (EPMA) indicate that the MNMB additive can form a tribological mixed reaction film containing C, O, B, N, and Na on a rubbing surface. The elemental boron exists in four different chemical states, but is mainly present in the form of BN on the rubbing surface.

Original language	English
Pages (from-to)	369-379
Number of pages	11
Journal	Lubrication Science
Volume	15
Issue number	4
DOIs	https://doi.org/10.1002/ls.3010150409
State	Published - Aug 2003
Externally published	Yes

Keywords

Borate
Boundary film
Oil additive
Tribochemistry
Wear

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10.1002/ls.3010150409

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title = "The tribochemical performance of nano/micrometre borate modified by an N-containing compound as an oil additive",

abstract = "An N-modified nano/micrometre borate (MNMB) as an oil additive was synthesised by an ultrasonic dispersion and emulsion reaction in the microemulsion phase. The particles of the MNMB additive were between 20 and 500 nm in diameter. The tribological properties of the MNMB as an oil additive were investigated using a four-ball tester. The results reveal that the MNMB possesses good tribological properties. When the boron concentration is 0.05 wt.%, the wear-scar diameter is smallest and the seizure load is highest. The antiwear and extreme-pressure properties of the MNMB were best at a viscosity of 65.3 mm/s2. Small-area X-ray photoelectron spectroscopy (XPS) and electron probe microanalysis (EPMA) indicate that the MNMB additive can form a tribological mixed reaction film containing C, O, B, N, and Na on a rubbing surface. The elemental boron exists in four different chemical states, but is mainly present in the form of BN on the rubbing surface.",

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author = "Yulin Qiao and Weimin Liu and Binshi Xu and Shining Ma and Qunji Xue",

year = "2003",

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doi = "10.1002/ls.3010150409",

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T1 - The tribochemical performance of nano/micrometre borate modified by an N-containing compound as an oil additive

AU - Qiao, Yulin

AU - Liu, Weimin

AU - Xu, Binshi

AU - Ma, Shining

AU - Xue, Qunji

PY - 2003/8

Y1 - 2003/8

N2 - An N-modified nano/micrometre borate (MNMB) as an oil additive was synthesised by an ultrasonic dispersion and emulsion reaction in the microemulsion phase. The particles of the MNMB additive were between 20 and 500 nm in diameter. The tribological properties of the MNMB as an oil additive were investigated using a four-ball tester. The results reveal that the MNMB possesses good tribological properties. When the boron concentration is 0.05 wt.%, the wear-scar diameter is smallest and the seizure load is highest. The antiwear and extreme-pressure properties of the MNMB were best at a viscosity of 65.3 mm/s2. Small-area X-ray photoelectron spectroscopy (XPS) and electron probe microanalysis (EPMA) indicate that the MNMB additive can form a tribological mixed reaction film containing C, O, B, N, and Na on a rubbing surface. The elemental boron exists in four different chemical states, but is mainly present in the form of BN on the rubbing surface.

AB - An N-modified nano/micrometre borate (MNMB) as an oil additive was synthesised by an ultrasonic dispersion and emulsion reaction in the microemulsion phase. The particles of the MNMB additive were between 20 and 500 nm in diameter. The tribological properties of the MNMB as an oil additive were investigated using a four-ball tester. The results reveal that the MNMB possesses good tribological properties. When the boron concentration is 0.05 wt.%, the wear-scar diameter is smallest and the seizure load is highest. The antiwear and extreme-pressure properties of the MNMB were best at a viscosity of 65.3 mm/s2. Small-area X-ray photoelectron spectroscopy (XPS) and electron probe microanalysis (EPMA) indicate that the MNMB additive can form a tribological mixed reaction film containing C, O, B, N, and Na on a rubbing surface. The elemental boron exists in four different chemical states, but is mainly present in the form of BN on the rubbing surface.

KW - Borate

KW - Boundary film

KW - Oil additive

KW - Tribochemistry

KW - Wear

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DO - 10.1002/ls.3010150409

M3 - 文章

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EP - 379

JO - Lubrication Science

JF - Lubrication Science

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ER -

The tribochemical performance of nano/micrometre borate modified by an N-containing compound as an oil additive

Abstract

Keywords

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