کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
615977 1454860 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of fragility in EHL entrapment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
The role of fragility in EHL entrapment
چکیده انگلیسی

Experimental measurements of time dependent film thickness in entrapped liquids, measurements of viscosity under pressure, and simulations using realistic pressure–viscosity models contribute to improved understanding of the mechanisms of entrapment formation and persistence. The ambient viscosity and pressure–viscosity coefficient affect entrapment only as much as they are predictors of behavior at much higher pressure. Fragile liquids, such as lubricating oils, experience rapid increase in sensitivity of dynamic properties to temperature and pressure as the glass transition is approached. The fragility property of lubricants appears to be of overwhelming importance to entrapment which experimental evidence indicates will reduce starting friction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 43, Issues 1–2, January–February 2010, Pages 277–282
نویسندگان
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