• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2005.10a
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• pp.123-125
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• 2005

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2005.10a
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• pp.53-66
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• 2005

[ $\cdot$ ] Performance can be evaluated beyond specification and requirements using existing pump tests $\cdot$ Bench testing of stressed fluids can deonstrate Retention of Performance

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2002.05a
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• pp.317-317
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• 2002

• Tribology and Lubricants
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• v.3 no.2
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• pp.5-14
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• 1987

일반적으로 플라스틱은 금속의 속성인 강도나 延性 등의 물성과는 비길 바가 못되고 고온에서의 내구성 등이 떨어진다는 短点이 있으나 점차적으로 이들의 단점이 보완되는 새 素材가 개발되므로서 베어링 재질에도 활용되고 있는 것이다. 플라스틱의 물성을 보완 향상시키기 위해 소위 여러가지 보완제를 사용하는데 다음에 이들과 관련한 소재에 관하여 생각하기로 한다.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2002.10a
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• pp.49-54
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• 2002

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 1992.06a
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• pp.1-20
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• 1992

1. Ceramics as engineering Materials Ceramic \ulcorner :'material based on inorganic non-metallic compounds' Oxygen, Carbon, Nitrogen with metal (Al, Si) -cheap, plentiful and widespread element in the Earth -dirt: ceramic

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2001.06a
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• pp.156-161
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• 2001

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 1997.10a
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• pp.3-42
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• 1997

A Development of Next Generation Gear Oils Is Very Complicated. Balancing Component Durability And Other Requirements (Fuel Economy, Etc.)Are Critical For A Successful Development Of The Next Generation Gear Oils.

• Applied Chemistry for Engineering
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• v.29 no.5
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• pp.533-540
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• 2018

Graphene has been reported to be an excellent lubricant additive that reduces friction and wear when coated on the surface of various materials or when dispersed in lubricants as an atomic thin material with the low surface energy. In this study, alkyl functionalized graphene oxide (FGO) nanosheets for oil-based lubricant additives were prepared by using three types of alkyl chloride chemicals (butyl chloride, octyl chloride, and tetradecyl chloride). The chemical and structural properties of the synthesized FGOs were analyzed by Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscope (SEM), and transmission electron microscope (TEM). The synthesized FGOs were dispersed at 0.02 wt% in PAO-0W40 oil and its tribological characteristics were investigated using a high frequency friction/wear tester. The friction coefficient and the wear track width of poly alpha olefin (PAO) oil added with FGO-14 were tested by a ball-on-disk method, and the measured results were reduced by ~5.88 and ~3.8%, respectively compared with those of the conventional PAO oil. Thus, it was found that the wear resistance of PAO oil was improved. In this study, we demonstrated the successful functionalization of GO as well as the improvement of dispersion stability and tribological characteristics of FGOs based on various alkyl chain lengths.

• Proceedings of the KSME Conference
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• 2005.11a
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• pp.222.1-222.1
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• 2005