46 research outputs found
Photometric Monitoring of Thermal Stability of Motor Oils and Effect of Thermal Degradation Products on Antiwear Properties
No full textТекст статьи не публикуется в открытом доступе в соответствии с политикой журнала.The results of determination of thermal stability of mineral and partly synthetic motor oils are
presented. The criterion of thermal stability is substantiated and the correlation between it and
antiwear properties of the oils is determined. Direct photometric measurement method, which helps
obtain an integral parameter of accumulation of all degradation products in the studied oil that can
be determined from the luminous flux absorption coefficient, is chosen as the basic method of
evaluation of thermal degradation processes. The essential feature of the method consists in
comprehensive evaluation of thermal stability and antiwear properties of lube oils from the parameters,
namely, the coefficient of luminous flux absorption, relative viscosity, vaporizability, and wear.
Correlations of optical properties, viscosity, vaporizability, and antiwear properties of the lube oils
with thermostating temperature are obtained, and based on them the limiting temperature of lube oil
performing ability was established
Photometric Monitoring of Thermal Stability of Motor Oils and Effect of Thermal Degradation Products on Antiwear Properties
No full textТекст статьи не публикуется в открытом доступе в соответствии с политикой журнала.The results of determination of thermal stability of mineral and partly synthetic motor oils are
presented. The criterion of thermal stability is substantiated and the correlation between it and
antiwear properties of the oils is determined. Direct photometric measurement method, which helps
obtain an integral parameter of accumulation of all degradation products in the studied oil that can
be determined from the luminous flux absorption coefficient, is chosen as the basic method of
evaluation of thermal degradation processes. The essential feature of the method consists in
comprehensive evaluation of thermal stability and antiwear properties of lube oils from the parameters,
namely, the coefficient of luminous flux absorption, relative viscosity, vaporizability, and wear.
Correlations of optical properties, viscosity, vaporizability, and antiwear properties of the lube oils
with thermostating temperature are obtained, and based on them the limiting temperature of lube oil
performing ability was established
METHOD OF MONITORING THERMAL STABILITY OF MOTOR OILS AND INFLUENCE OF THERMAL DEGRADATION PRODUCTS ON WEAR RESISTANCE PROPERTIES
No full textThe results of determination of thermal stability of mineral and semisynthetic motor oils are presented. The thermal stability criterion is validated and the link between it and the wear resistance properties of motor oils is determine
METHOD OF MONITORING THERMAL STABILITY OF MOTOR OILS AND INFLUENCE OF THERMAL DEGRADATION PRODUCTS ON WEAR RESISTANCE PROPERTIES
No full textThe results of determination of thermal stability of mineral and semisynthetic motor oils are presented. The thermal stability criterion is validated and the link between it and the wear resistance properties of motor oils is determine
Effective contact stress at the surface of barrel-shaped straight teeth on involute gears
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Giant fluctuations of radiation intensity of two-dimensional electrons in double quantum wells
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The migration capacity of stable strontium in soddy-podzolic soils of the Russian Northwest (Data of simulation experiments)
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