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Relevant bibliographies by topics / Boundary lubricant / Dissertations / Theses

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Dissertations / Theses on the topic 'Boundary lubricant'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Silvestro, Michael. "Analysis of boundary lubricant films using Raman spectroscopy." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/39771.

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2

Манько, Наталія Миколаївна, Наталья Николаевна Манько, and Nataliia Mykolaivna Manko. "Stick-slip mode of boundary friction." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33545.

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The study of the boundary friction processes that develop in nanosized tribosystems has drawn active interest of many researchers. One of the perspective directions is the investigation of the friction of atomically smooth solid surfaces in the presence of an ultrathin film of a homogeneous lubricant between them. The interest is partially due to the applied significance of these systems, as they are used in increasing frequency to design precise devices and instruments. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33545

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3

Zhao, Ping. "Three-dimensional boundary element and experimental analysis of lubricant ceramic surface ring cracks in rolling contact." Thesis, Bournemouth University, 2006. http://eprints.bournemouth.ac.uk/10552/.

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Surface defects such as ring cracks are located on silicon nitride ceramic rolling elements.The random nature of ring crack position creates difficulties in predicting rolling contact fatigue (RCF) life. The influence of the lubricant, contact pressure and crack geometry on the RCF mechanism is difficult to determine due to the variable nature of RCF life when the crack location is not defined. In this study, rolling contact fatigue was tested using a novel experimental technique. The test ceramic ball specimen with identified surface ring cracks was precisely located in the contact path. The

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4

Manko, N. N., and I. A. Lyashenko. "Stochastic Oscillations at Stick-Slip Motion in the Boundary Friction Regime." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35148.

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In this paper, the further development of the synergetic model describing the ultrathin lubricant film state clamped between two atomically smooth solid surfaces operating under boundary friction mode has been done based on the Lorentz model for the approximation of a viscoelastic medium. In all cases, the phase portraits have been built. It has been found that the friction surfaces' temperature increasing leads to the growth of stochasticity in the investigated system. In the phase plane the stochastic oscillation mode can be described as a strange attractor. Also, the behavior of two di

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5

Súkeník, Juraj. "Vliv mazivostních přísad na snižování opotřebení třecích povrchů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229251.

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Lubricants additives are inseparable component of modern high-tech lubricants. Viscosity index improvers additives play uncoverable role in a branch of boundary lubrication. They are designed to ensure sufficient oil film thickness in low speeds of frictional surfaces motion. This thesis deal with effect of specific viscosity index improvers additives on boundary lubrication film formation in elliptical contact. The purpose of this work is also checking the effect of concentration changing these additives on lubricantion film thickness formation.

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6

Satam, Sayali S. "Optimization of Wet Friction Systems Based on Rheological, Adsorption, Lubricant and Friction Material Characterization." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1503358825451407.

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7

Ляшенко, Яків Олександрович, Яков Александрович Ляшенко та Yakiv Oleksandrovych Liashenko. "Фазовые переходы между кинетическими режимами граничного трения". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46497.

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У дисертацiї побудовано теорiю тертя атомарно-гладких твердих поверхонь, роздiлених межовим мастилом, плавлення i тверднення якого подано як фазовi переходи першого або другого роду. Описано переривчастий режим руху та ефекти пам’ятi, пов’язанi з релаксацiйними процесами. При врахуваннi залежностi ефективної в’язкостi вiд температури i градiєнта швидкостi описано статичну силу тертя. Можливий випадок, коли по площi контакту iснує доменна структура з рiдиноподiбними i твердоподiбними дiлянками. При просторово неоднорiдному розподiлi параметра порядку мастило швидко набуває однорiдного стану. Пр

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8

Poon, Chin Yim. "The influence of surface topography on sliding friction in boundary lubrication." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/11870.

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9

Cen, Hui. "Effect of water on the performance of lubricants and related tribochemistry in boundary lubricated steel/steel contacts." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/5434/.

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The objective of the overall project is to assess the effect of water on the performance of lubricants and related tribochemistry in boundary lubricated steel/steel contacts. The effect of water on the bulk properties of the lubricant, the tribological performance of lubricants and the mechanism of tribofilm formulation are the focus of this project. The tribological performance of different lubricants is evaluated by a ball-on-disc test rig as well as a micropitting rig under boundary lubrication and with different levels of humidity. Selected post test samples are analysed to study the react

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10

McGregor, Peter Stanley. "Modelling the Effect of Suspended Bodies on Cavitation Bubbles near a Ridgid Boundary using a Boundary Integral Approach." Queensland University of Technology, 2003. http://eprints.qut.edu.au/15822/.

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Cavitation is the spontaneous vaporisation of a liquid to its gaseous state due to the local absolute pressure falling to the liquid's vapour pressure (Douglas, Gasiorek et al. 1995). Cavitation is present in a wide range of mechanical systems ranging from ship screws to journal bearing. Generally, cavitation is unavoidable and may cause considerable damage and efficiency losses to these systems. This thesis considers hydraulic systems specifically, and uses a modified Greens equation to develop a boundary integral method to simulate the effect that suspended solid bodies have on a single ca

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11

McGregor, Peter Stanley. "Modelling the effect of suspended bodies on cavitation bubbles near a rigid boundary using a boundary integral approach." Thesis, Queensland University of Technology, 2003. https://eprints.qut.edu.au/15822/1/Peter_McGregor_Thesis.pdf.

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Cavitation is the spontaneous vaporisation of a liquid to its gaseous state due to the local absolute pressure falling to the liquid's vapour pressure (Douglas, Gasiorek et al. 1995). Cavitation is present in a wide range of mechanical systems ranging from ship screws to journal bearing. Generally, cavitation is unavoidable and may cause considerable damage and efficiency losses to these systems. This thesis considers hydraulic systems specifically, and uses a modified Greens equation to develop a boundary integral method to simulate the effect that suspended solid bodies have on a single

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12

Trajano, Marinalva Ferreira. "Estudo tribol?gico de biolubrificantes com adi??o de nanopart?culas de ?xidos (zinco e cobre)." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15722.

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Made available in DSpace on 2014-12-17T14:58:23Z (GMT). No. of bitstreams: 1 MarinalvaFT_DISSERT.pdf: 2645446 bytes, checksum: d4a95fdf4bdc8c40f2876e653a2bb39f (MD5) Previous issue date: 2013-08-02<br>Currently, vegetable oils have been studied for bio-lubricants base that fits the new environmental standards. Since, in a world full of finite natural resources, mineral oils bring consequences to the environment due to its low biodegradability and toxicity, also it is important to consider that synthetic oils have a high cost The aim of this work is to obtain a biolubricant additived with oxi

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13

Wang, Min. "Biolubricants and Biolubrication." Doctoral thesis, KTH, Yt- och korrosionsvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156632.

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The main objective of this thesis work was to gain understanding of the principles of biolubrication, focusing on synergistic effects between biolubricants. To this end surface force and friction measurements were carried out by means of Atomic Force Microscopy, using hydrophilic and hydrophobic model surfaces in salt solutions of high ionic strength (≈ 150 mM) in presence of different biolubricants. There was also a need to gain information on the adsorbed layers formed by the biolubricants. This was achieved by using a range of methods such as Atomic Force Microscopy PeakForce imaging, Quart

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14

Zhang, Huan. "A deterministic-statistical model for tribo-contacts in boundary lubrication with lubricant/surface physicochemistry." 2005. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-744/index.html.

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15

Titov, Andriy. "Effect of fullerene containing lubricants on wear resistance of machine components in boundary lubrication." Thesis, 2004. http://library1.njit.edu/etd/fromwebvoyage.cfm?id=njit-etd2004-033.

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